Update actions/cache action to v6

Author: renovate[bot]

.github/workflows/codecov.yml

@@ -35,7 +35,7 @@ jobs:
         run: echo "COMPOSER_CACHE_DIR=$(composer config cache-dir)" >> $GITHUB_ENV
 
       - name: Cache dependencies installed with composer
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ${{ env.COMPOSER_CACHE_DIR }}
           key: php${{ matrix.php }}-composer-${{ hashFiles('**/composer.json') }}

.github/workflows/qodana_code_quality.yml

@@ -35,7 +35,7 @@ jobs:
         run: echo "COMPOSER_CACHE_DIR=$(composer config cache-dir)" >> $GITHUB_ENV
 
       - name: Cache dependencies installed with composer
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ${{ env.COMPOSER_CACHE_DIR }}
           key: php${{ matrix.php }}-composer-${{ hashFiles('**/composer.json') }}

.github/workflows/static-analysis.yml

@@ -35,7 +35,7 @@ jobs:
         run: echo "COMPOSER_CACHE_DIR=$(composer config cache-dir)" >> $GITHUB_ENV
 
       - name: Cache dependencies installed with composer
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ${{ env.COMPOSER_CACHE_DIR }}
           key: php${{ matrix.php }}-composer-${{ hashFiles('**/composer.json') }}