chore: update rector.yml

Author: kenjis

.github/workflows/rector.yml

@@ -61,6 +61,4 @@ jobs:
           fi
 
       - name: Analyze for refactoring
-        run: |
-          composer global require --dev rector/rector:^0.15.1
-          rector process --dry-run --no-progress-bar
+        run: vendor/bin/rector process --dry-run --no-progress-bar