fixup! trigger on ush for testing

Author: charludo

.github/workflows/release_nightly.yml

@@ -4,6 +4,9 @@ on:
   schedule:
     - cron: "15 20 * * *" # 20:15 UTC, every day
   workflow_dispatch: {}
+  push:
+    branches:
+      - ch/nightly-release-pipeline
 
 env:
   container_registry: ghcr.io/edgelesssys