Add check on headers

.github/workflows/php.yml

@@ -123,3 +123,24 @@ jobs:
           for file in autoupgrade.php controllers/admin/AdminSelfUpgradeController.php classes/VersionUtils.php classes/UpgradeTools/Translator.php; do 
             php -l $file; 
           done
+
+  header-stamp:
+    name: Check license headers
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup PHP 8.3
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.3'
+
+      - run: composer install
+
+      - name: Run Header Stamp in Dry Run mode
+        run: |
+          php tests/vendor/bin/header-stamp --license=tests/vendor/prestashop/header-stamp/assets/afl.txt --exclude=vendor,tests,_dev --dry-run  || {
+            echo "::error::Some headers are missing or incorrect. Run 'tests/vendor/bin/header-stamp --license=tests/vendor/prestashop/header-stamp/assets/afl.txt --exclude=vendor,tests,_dev' to autofix them."
+            exit 1
+          }

tests/composer.json

@@ -1,7 +1,8 @@
 {
     "require-dev": {
         "phpstan/phpstan": "^1.11",
-        "prestashop/php-dev-tools": "^5"
+        "prestashop/php-dev-tools": "^5",
+        "prestashop/header-stamp": "^2.3"
     },
     "config": {
         "platform": {