fix: limit perform release runs

Author: Johannes Schneider

.github/workflows/perform-release.yml

@@ -3,7 +3,6 @@ name: "Perform Release"
 on:
   pull_request_review:
     types: [submitted]
-    branches: [RELEASE-*]
 
   workflow_dispatch:
     inputs:
@@ -19,6 +18,7 @@ env:
 jobs:
   prerequisites:
     name: "Prerequisites"
+    if: ${{ github.event_name == 'workflow_dispatch' || (github.event_name == 'pull_request_review' && github.event.review.state == 'approved' && startsWith(github.event.pull_request.head.ref, 'RELEASE-')) }}
     outputs:
       release-version: ${{ steps.determine-branch-names.outputs.RELEASE_VERSION }}
       release-tag: ${{ steps.determine-branch-names.outputs.RELEASE_TAG }}