fix(workflows): update php-cs-fixer workflow

- Update php-cs-fixer.yml file in workflows
- Modify the workflow to run on push events only
- Remove unused steps
- Cache composer dependencies
- Run composer install
- Run php-cs-fixer to fix styling
- Commit changes

.github/workflows/php-cs-fixer.yml

@@ -1,23 +1,35 @@
 name: check & fix styling
 
-on: [push, pull_request]
+on: [ push ]
 
 jobs:
   php-cs-fixer:
+    name: php-cs-fixer
     runs-on: ubuntu-latest
-
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
+      - uses: actions/checkout@v3
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
         with:
-          ref: ${{ github.head_ref }}
+          php-version: '7.2'
+          extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, bcmath, soap, intl, gd, exif, iconv, imagick
+          coverage: none
 
-      - name: Run PHP CS Fixer
-        uses: docker://oskarstark/php-cs-fixer-ga
+      - name: Cache composer dependencies
+        uses: actions/cache@v3
         with:
-          args: --config=.php-cs-fixer.php --allow-risky=yes
+          path: vendor
+          key: composer-${{ hashFiles('composer.lock') }}
+
+      - name: Run composer install
+        run: composer install --no-interaction --prefer-dist --ansi -v
+
+      - name: Run php-cs-fixer
+        run: composer style-fix
 
       - name: Commit changes
         uses: stefanzweifel/git-auto-commit-action@v4
         with:
           commit_message: Fix styling
+          file_pattern: '**.php'