Add linter for sniffs

.github/workflows/php-lint.yml

@@ -61,3 +61,28 @@ jobs:
 
       - name: PHPMD
         run: composer phpmd
+
+  php-lint-sniffs:
+    name: PHP (Sniffs)
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.0'
+
+      - name: Validate Composer configuration
+        working-directory: "phpcs-sniffs"
+        run: composer validate
+
+      - name: Install PHP dependencies
+        uses: ramsey/composer-install@57532f8be5bda426838819c5ee9afb8af389d51a
+        with:
+          composer-options: '--prefer-dist'
+          working-directory: "phpcs-sniffs"
+
+      - name: PHP Lint
+        working-directory: "phpcs-sniffs"
+        run: composer lint