ci: add formats workflow

.github/workflows/formats.yml

@@ -0,0 +1,44 @@
+name: Formats
+
+on:
+  push:
+    branches: ['main']
+  pull_request:
+    branches: ['main']
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: true
+      matrix:
+        php: [8.1, 8.2]
+
+    name: PHP ${{ matrix.php }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup PHP Action
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: curl, xml, mbstring, zip
+          coverage: none
+
+      - name: Validate composer.json and composer.lock
+        run: composer validate --strict
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress
+
+      - name: Coding style checks
+        run: vendor/bin/phpcs
+
+      - name: Static analysis checks
+        run: vendor/bin/phpcs