Added composer.json hash as key

Author: WalterWoshid

.github/workflows/tests.yml

@@ -36,7 +36,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: vendor
-          key: ${{ runner.os }}-${{ matrix.operating-system }}-php-${{ steps.php.outputs.php-version }}
+          key: ${{ runner.os }}-${{ matrix.operating-system }}-php-${{ steps.php.outputs.php-version }}-composer-${{ hashFiles('**/composer.json') }}
           restore-keys: |
             ${{ runner.os }}-${{ matrix.operating-system }}-php-${{ steps.php.outputs.php-version }}