chore(deps): bump actions/cache from 3 to 4 (#765)

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](https://github.com/actions/cache/compare/v3...v4)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -40,7 +40,7 @@ jobs:
 
       - name: Cache MediaWiki
         id: cache-mediawiki
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             mediawiki
@@ -49,7 +49,7 @@ jobs:
           key: mw_${{ matrix.mw }}-php${{ matrix.php }}-v20
 
       - name: Cache Composer cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.composer/cache
           key: composer-php${{ matrix.php }}

.github/workflows/mediawiki.yml

@@ -26,7 +26,7 @@ jobs:
         fetch-depth: 0  # OR "2" -> To retrieve the preceding commit.
 
     - name: Cache dependencies
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: /home/runner/cache
         key: ${{ runner.os }}-${{ hashFiles('**/*.lock') }}