chore: check file permissions on GH

Author: ddevsr

.github/workflows/test-file-permissions.yml

@@ -20,5 +20,31 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.1'
+          extensions: intl
+          coverage: none
+
+      - name: Use latest Composer
+        run: composer self-update
+
+      - name: Validate composer.json
+        run: composer validate --strict
+
+      - name: Get composer cache directory
+        run: echo "COMPOSER_CACHE_FILES_DIR=$(composer config cache-files-dir)" >> $GITHUB_ENV
+
+      - name: Cache dependencies
+        uses: actions/cache@v4
+        with:
+          path: ${{ env.COMPOSER_CACHE_FILES_DIR }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
+          restore-keys: ${{ runner.os }}-composer-
+
+      - name: Install dependencies
+        run: composer update --ansi --no-interaction
+
       - name: Detect unnecessary execution permissions
         run: php utils/check_permission_x.php