Bump actions/cache from 4.2.0 to 4.2.1 in the github-actions group

Bumps the github-actions group with 1 update: [actions/cache](https://github.com/actions/cache).

Updates `actions/cache` from 4.2.0 to 4.2.1
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/actions/cache/releases">actions/cache's releases</a>.</em></p>
<blockquote>
<h2>v4.2.1</h2>
<h2>What's Changed</h2>
<blockquote>
<p>[!IMPORTANT]
As a reminder, there were important backend changes to release v4.2.0, see <a href="https://github.com/actions/cache/releases/tag/v4.2.0">those release notes</a> and <a href="https://github.com/actions/cache/discussions/1510">the announcement</a> for more details.</p>
</blockquote>
<ul>
<li>docs: GitHub is spelled incorrectly in caching-strategies.md by <a href="https://github.com/janco-absa"><code>@​janco-absa</code></a> in <a href="https://redirect.github.com/actions/cache/pull/1526">actions/cache#1526</a></li>
<li>docs: Make the &quot;always save prime numbers&quot; example more clear by <a href="https://github.com/Tobbe"><code>@​Tobbe</code></a> in <a href="https://redirect.github.com/actions/cache/pull/1525">actions/cache#1525</a></li>
<li>Update force deletion docs due a recent deprecation by <a href="https://github.com/sebbalex"><code>@​sebbalex</code></a> in <a href="https://redirect.github.com/actions/cache/pull/1500">actions/cache#1500</a></li>
<li>Bump <code>@​actions/cache</code> to v4.0.1 by <a href="https://github.com/robherley"><code>@​robherley</code></a> in <a href="https://redirect.github.com/actions/cache/pull/1554">actions/cache#1554</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/janco-absa"><code>@​janco-absa</code></a> made their first contribution in <a href="https://redirect.github.com/actions/cache/pull/1526">actions/cache#1526</a></li>
<li><a href="https://github.com/Tobbe"><code>@​Tobbe</code></a> made their first contribution in <a href="https://redirect.github.com/actions/cache/pull/1525">actions/cache#1525</a></li>
<li><a href="https://github.com/sebbalex"><code>@​sebbalex</code></a> made their first contribution in <a href="https://redirect.github.com/actions/cache/pull/1500">actions/cache#1500</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/cache/compare/v4.2.0...v4.2.1">https://github.com/actions/cache/compare/v4.2.0...v4.2.1</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/actions/cache/blob/main/RELEASES.md">actions/cache's changelog</a>.</em></p>
<blockquote>
<h1>Releases</h1>
<h3>4.2.1</h3>
<ul>
<li>Bump <code>@actions/cache</code> to v4.0.1</li>
</ul>
<h3>4.2.0</h3>
<p>TLDR; The cache backend service has been rewritten from the ground up for improved performance and reliability. <a href="https://github.com/actions/cache">actions/cache</a> now integrates with the new cache service (v2) APIs.</p>
<p>The new service will gradually roll out as of <strong>February 1st, 2025</strong>. The legacy service will also be sunset on the same date. Changes in these release are <strong>fully backward compatible</strong>.</p>
<p><strong>We are deprecating some versions of this action</strong>. We recommend upgrading to version <code>v4</code> or <code>v3</code> as soon as possible before <strong>February 1st, 2025.</strong> (Upgrade instructions below).</p>
<p>If you are using pinned SHAs, please use the SHAs of versions <code>v4.2.0</code> or <code>v3.4.0</code></p>
<p>If you do not upgrade, all workflow runs using any of the deprecated <a href="https://github.com/actions/cache">actions/cache</a> will fail.</p>
<p>Upgrading to the recommended versions will not break your workflows.</p>
<h3>4.1.2</h3>
<ul>
<li>Add GitHub Enterprise Cloud instances hostname filters to inform API endpoint choices - <a href="https://redirect.github.com/actions/cache/pull/1474">#1474</a></li>
<li>Security fix: Bump braces from 3.0.2 to 3.0.3 - <a href="https://redirect.github.com/actions/cache/pull/1475">#1475</a></li>
</ul>
<h3>4.1.1</h3>
<ul>
<li>Restore original behavior of <code>cache-hit</code> output - <a href="https://redirect.github.com/actions/cache/pull/1467">#1467</a></li>
</ul>
<h3>4.1.0</h3>
<ul>
<li>Ensure <code>cache-hit</code> output is set when a cache is missed - <a href="https://redirect.github.com/actions/cache/pull/1404">#1404</a></li>
<li>Deprecate <code>save-always</code> input - <a href="https://redirect.github.com/actions/cache/pull/1452">#1452</a></li>
</ul>
<h3>4.0.2</h3>
<ul>
<li>Fixed restore <code>fail-on-cache-miss</code> not working.</li>
</ul>
<h3>4.0.1</h3>
<ul>
<li>Updated <code>isGhes</code> check</li>
</ul>
<h3>4.0.0</h3>
<ul>
<li>Updated minimum runner version support from node 12 -&gt; node 20</li>
</ul>
<h3>3.4.0</h3>
<ul>
<li>Integrated with the new cache service (v2) APIs</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/actions/cache/commit/0c907a75c2c80ebcb7f088228285e798b750cf8f"><code>0c907a7</code></a> Merge pull request <a href="https://redirect.github.com/actions/cache/issues/1554">#1554</a> from actions/robherley/v4.2.1</li>
<li><a href="https://github.com/actions/cache/commit/710893c2369beb60748049b671f18c43a3656fce"><code>710893c</code></a> bump <code>@​actions/cache</code> to v4.0.1</li>
<li><a href="https://github.com/actions/cache/commit/9fa7e61ec7e1f44ac75218e7aaea81da8856fd11"><code>9fa7e61</code></a> Update force deletion docs due a recent deprecation (<a href="https://redirect.github.com/actions/cache/issues/1500">#1500</a>)</li>
<li><a href="https://github.com/actions/cache/commit/36f1e144e1c8edb0a652766b484448563d8baf46"><code>36f1e14</code></a> docs: Make the &quot;always save prime numbers&quot; example more clear (<a href="https://redirect.github.com/actions/cache/issues/1525">#1525</a>)</li>
<li><a href="https://github.com/actions/cache/commit/53aa38c736a561b9c17b62df3fe885a17b78ee6d"><code>53aa38c</code></a> Correct GitHub Spelling in caching-strategies.md (<a href="https://redirect.github.com/actions/cache/issues/1526">#1526</a>)</li>
<li>See full diff in <a href="https://github.com/actions/cache/compare/1bd1e32a3bdc45362d1e726936510720a7c30a57...0c907a75c2c80ebcb7f088228285e798b750cf8f">compare view</a></li>
</ul>
</details>
<br />

[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/cache&package-manager=github_actions&previous-version=4.2.0&new-version=4.2.1)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

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[//]: # (dependabot-automerge-start)
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---

<details>
<summary>Dependabot commands and options</summary>
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</details>

Fixes #1396

COPYBARA_INTEGRATE_REVIEW=#1396 from google:dependabot/github_actions/github-actions-d1ac57ba92 56f9e7e
PiperOrigin-RevId: 730486491

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
       - name: 'Check out repository'
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       - name: 'Cache local Maven repository'
-        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57
+        uses: actions/cache@0c907a75c2c80ebcb7f088228285e798b750cf8f
         with:
           path: ~/.m2/repository
           key: maven-${{ hashFiles('**/pom.xml') }}
@@ -54,7 +54,7 @@ jobs:
       - name: 'Check out repository'
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       - name: 'Cache local Maven repository'
-        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57
+        uses: actions/cache@0c907a75c2c80ebcb7f088228285e798b750cf8f
         with:
           path: ~/.m2/repository
           key: maven-${{ hashFiles('**/pom.xml') }}
@@ -83,7 +83,7 @@ jobs:
       - name: 'Check out repository'
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       - name: 'Cache local Maven repository'
-        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57
+        uses: actions/cache@0c907a75c2c80ebcb7f088228285e798b750cf8f
         with:
           path: ~/.m2/repository
           key: maven-${{ hashFiles('**/pom.xml') }}