Improve tests

Author: Gared

.github/workflows/php.yml

@@ -28,26 +28,20 @@ jobs:
     - name: Validate composer.json
       run: composer validate
 
-#    - name: Cache Composer packages
-#      id: composer-cache
-#      uses: actions/cache@v2
-#      with:
-#        path: vendor
-#        key: ${{ runner.os }}-php-${{ hashFiles('**/composer.json') }}
-#        restore-keys: |
-#          ${{ runner.os }}-php-
+    - uses: "shivammathur/setup-php@v2"
+      with:
+        php-version: ${{ matrix.php-version }}
 
     - name: Install dependencies
       uses: "ramsey/composer-install@v3"
       with:
         dependency-versions: ${{ matrix.dependency-versions }}
 
     - name: PHPUnit tests
-      uses: php-actions/phpunit@v2
+      uses: php-actions/phpunit@v4
       with:
         configuration: phpunit.xml
         php_version: ${{ matrix.php-version }}
-        version: 9
 
     - name: Run PHPStan
       run: vendor/bin/phpstan