Bump actions/cache from 3 to 4

Bumps [actions/cache](https://github.com/actions/cache) from 3 to 4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3...v4)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/ci.yml

@@ -40,7 +40,7 @@ jobs:
         otp-version: ${{ matrix.otp }}
 
     - name: Restore deps and _build cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: |
           deps
@@ -76,7 +76,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Restore deps and _build cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             deps
@@ -91,7 +91,7 @@ jobs:
           node-version: 12.x
 
       - name: Restore npm cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}