ci: add eslint.yml

.github/workflows/symfony.yml

@@ -16,6 +16,14 @@ jobs:
             -   name: Checkout code
                 uses: actions/checkout@v3
 
+            -   name: Cache Composer dependencies
+                uses: actions/cache@v3
+                with:
+                    path: vendor
+                    key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+                    restore-keys: |
+                        ${{ runner.os }}-composer-
+
             -   name: Set up PHP
                 uses: shivammathur/setup-php@v2
                 with:
@@ -25,14 +33,8 @@ jobs:
             -   name: Install backend dependencies
                 run: composer install --prefer-dist --no-progress --no-suggest --optimize-autoloader
 
-            -   name: Install frontend dependencies
-                run: yarn install
-
             -   name: Run PHP-CS-Fixer
                 run: vendor/bin/php-cs-fixer fix --dry-run --diff
 
             -   name: Run PHPStan
                 run: vendor/bin/phpstan analyse
-
-            -   name: Run ESLint
-                run: yarn run eslint