use phpunit, phpstan as tools

Author: Mokhtar Tlili

.github/workflows/php.yml

@@ -44,7 +44,7 @@ jobs:
       run: composer install --prefer-dist --no-progress
 
     - name: Quality Code
-      run: phpstan
+      run: phpstan analyse src tests
 
     - name: PHPUnit Tests
-      run: phpunit
+      run: phpunit tests