ci: add github workflow

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php-versions: ['8.0', '8.1', '8.2']
+
+    name: PHP ${{ matrix.php-versions }}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: 🐘 Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-versions }}
+          tools: composer:v2
+
+      - name: ⬇️ Install dependencies
+        run: composer install
+
+      - name: 🏮 Lint
+        run: ./vendor/bin/ecs check