Workflow added on PR creation

.github/workflows/ci.yml

@@ -0,0 +1,22 @@
+name: PHP CI
+
+on:
+  pull_request:
+    branches: [maestro]
+  # push:
+  # branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Validate composer.json and composer.lock
+        run: composer validate
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress --no-suggest
+
+      - name: Run tests
+        run: ./vendor/bin/pest