Add check workflow

.github/workflows/check.yaml

@@ -0,0 +1,34 @@
+name: Check
+
+on:
+  push:
+    branches: [ "2.x" ]
+
+permissions:
+  contents: read
+
+jobs:
+  check:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Setup PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: '8.2'
+        tools: composer
+
+    - uses: actions/checkout@v4
+
+    - name: Validate composer.json and composer.lock
+      run: composer validate --strict
+
+    - name: Install dependencies
+      run: composer install
+
+    - name: Check coding style
+      run: composer fix:check
+
+    - name: Run PHPStan
+      run: composer phpstan

composer.json

@@ -36,6 +36,7 @@
     },
     "scripts": {
         "fix": "php-cs-fixer fix --config=formwork/.php-cs-fixer.php --cache-file=formwork/.php-cs-fixer.cache --verbose",
+        "fix:check": "php-cs-fixer check --config=formwork/.php-cs-fixer.php --cache-file=formwork/.php-cs-fixer.cache",
         "phpstan": "phpstan analyse --configuration=formwork/phpstan.neon",
         "phpstan:baseline": "phpstan analyse --configuration=formwork/phpstan.neon --generate-baseline=formwork/phpstan-baseline.neon",
         "rector": "rector --config=formwork/.rector.php",