Bump actions/cache from 4 to 5

Bumps [actions/cache](https://github.com/actions/cache) from 4 to 5.
- [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/v4...v5)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/tests-mysql.yml

@@ -43,7 +43,7 @@ jobs:
         id: composer-cache
         run: |
           echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ runner.os }}-${{ matrix.php-version }}-composer-${{ hashFiles('**/composer.lock') }}

.github/workflows/tests-postgres.yml

@@ -40,7 +40,7 @@ jobs:
         id: composer-cache
         run: |
           echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ runner.os }}-${{ matrix.php-version }}-composer-${{ hashFiles('**/composer.lock') }}

.github/workflows/tests-sqlite.yml

@@ -31,7 +31,7 @@ jobs:
         id: composer-cache
         run: |
           echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ runner.os }}-${{ matrix.php-version }}-composer-${{ hashFiles('**/composer.lock') }}