[ci] Add automated Rector run

.github/workflows/code_analysis.yaml

@@ -32,6 +32,10 @@ jobs:
                         name: 'PHPStan'
                         run: vendor/bin/phpstan
 
+                    -
+                        name: 'Tests'
+                        run: vendor/bin/phpunit
+
         name: ${{ matrix.actions.name }}
 
         runs-on: ubuntu-latest

.github/workflows/rector.yaml.yml

@@ -0,0 +1,39 @@
+# github action that checks code with Rector
+name: Rector
+
+on:
+    pull_request: null
+
+env:
+    # see https://github.com/composer/composer/issues/9368#issuecomment-718112361
+    COMPOSER_ROOT_VERSION: "dev-main"
+
+jobs:
+    rector:
+        runs-on: ubuntu-latest
+        if: github.event.pull_request.head.repo.full_name == 'rectorphp/rector-symfony'
+        steps:
+            -
+                if: github.event.pull_request.head.repo.full_name == github.repository
+                uses: actions/checkout@v4
+                with:
+                    # Must be used to trigger workflow after push
+                    token: ${{ secrets.ACCESS_TOKEN }}
+
+            -
+                uses: shivammathur/setup-php@v2
+                with:
+                    php-version: 8.3
+                    coverage: none
+
+            -   uses: "ramsey/composer-install@v2"
+
+            -   run: vendor/bin/rector --ansi
+
+            -
+                # commit only to core contributors who have repository access
+                uses: stefanzweifel/git-auto-commit-action@v4
+                with:
+                    commit_message: '[rector] Rector fixes'
+                    commit_author: 'GitHub Action <actions@github.com>'
+                    commit_user_email: 'action@github.com'