chore(deps): Bump subst from 0.3.3 to 0.3.5 (#1513)

Bumps [subst](https://github.com/fizyr/subst) from 0.3.3 to 0.3.5.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/fizyr/subst/blob/main/CHANGELOG">subst's
changelog</a>.</em></p>
<blockquote>
<h1>Version 0.3.5 - 2024-09-15</h1>
<ul>
<li>[change][patch] Update README for new feature flags.</li>
</ul>
<h1>Version 0.3.4 - 2024-09-15</h1>
<ul>
<li>[add][minor] Add optional support for the <code>indexmap</code>
crate.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/fizyr/subst/commit/8d5ecb9b7bb0a84c31b7d9d066ec2ff5533a3807"><code>8d5ecb9</code></a>
Bump version to 0.3.5.</li>
<li><a
href="https://github.com/fizyr/subst/commit/5e4bf306a43c383f9e6dac671f979b939066a96f"><code>5e4bf30</code></a>
Merge pull request <a
href="https://redirect.github.com/fizyr/subst/issues/26">#26</a> from
fizyr/update-readme</li>
<li><a
href="https://github.com/fizyr/subst/commit/656f21c1cbfd8f510563aea19c2526a64fb3eb9b"><code>656f21c</code></a>
Update README for new feature flags.</li>
<li><a
href="https://github.com/fizyr/subst/commit/b8a16e86228857b032271b36857fdf7a86e7dfd5"><code>b8a16e8</code></a>
Bump version to 0.3.4.</li>
<li><a
href="https://github.com/fizyr/subst/commit/2a5cc1af6b4c2a6f9b2368982a6f6eac4d4ac138"><code>2a5cc1a</code></a>
Merge pull request <a
href="https://redirect.github.com/fizyr/subst/issues/25">#25</a> from
fizyr/indexmap</li>
<li><a
href="https://github.com/fizyr/subst/commit/35c4f92c61d1a1662b475ff973070e9cefb68229"><code>35c4f92</code></a>
Add optional support for the <code>indexmap</code> crate.</li>
<li><a
href="https://github.com/fizyr/subst/commit/cdf6832cdd4c926e9e533336331518dcc06289e5"><code>cdf6832</code></a>
Move all optional features to the <code>features</code> module.</li>
<li>See full diff in <a
href="https://github.com/fizyr/subst/compare/v0.3.3...v0.3.5">compare
view</a></li>
</ul>
</details>
<br />


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