feat: automatic branch deletion

Author: brynblack

.github/workflows/clean.yml

@@ -14,6 +14,7 @@ jobs:
     concurrency:
       group: check-deployment-stop
       cancel-in-progress: false
+    environment: feature
     if: startsWith(github.head_ref, 'feature')
     steps:
       - uses: actions/checkout@v4