Update actions/cache action to v5

Author: renovate[bot]

.github/workflows/php.yml

@@ -43,7 +43,7 @@ jobs:
 
             -   name: Cache Composer packages
                 id: composer-cache
-                uses: actions/cache@v4
+                uses: actions/cache@v5
                 with:
                     path: vendor
                     key: ${{ runner.os }}-php-${{ matrix.php }}-symfony-${{ matrix.symfony }}-${{ hashFiles('**/composer.lock') }}