Update composer-install version to v3

Author: borkweb

.github/workflows/php-lint.yml

@@ -48,7 +48,7 @@ jobs:
         run: composer validate
 
       - name: Install PHP dependencies
-        uses: ramsey/composer-install@3cf229dc2919194e9e36783941438d17239e8520
+        uses: ramsey/composer-install@v3
         with:
           composer-options: '--prefer-dist'