Bump actions/cache from 4.2.0 to 4.2.1

Bumps [actions/cache](https://github.com/actions/cache) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v4.2.0...v4.2.1)

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

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

Author: dependabot[bot]

.github/workflows/run-tests.yml

@@ -39,7 +39,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Cache dependencies
-        uses: actions/[email protected].0
+        uses: actions/[email protected].1
         with:
           path: ~/.composer/cache/files
           key: dependencies-php-${{ matrix.php }}-composer-${{ hashFiles('composer.json') }}