Simplify helm publish logic

Author: ciarams87

.github/workflows/ci.yml

@@ -531,9 +531,9 @@ jobs:
 
   publish-helm:
     name: Package and Publish Helm Chart
-    runs-on: ${{ github.repository_owner == 'nginx' && (inputs.is_production_release || ((github.event_name == 'push' || github.event_name == 'schedule') && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release-')))) && 'ubuntu-24.04-amd64' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository_owner == 'nginx' && 'ubuntu-24.04-amd64' || 'ubuntu-24.04' }}
     needs: [vars, helm-tests]
-    if: ${{ (inputs.is_production_release && (inputs.dry_run == false || inputs.dry_run == null)) || (github.event_name == 'push' && ! startsWith(github.ref, 'refs/heads/release-')) }}
+    if: ${{ inputs.is_production_release || github.ref == 'refs/heads/main' }}
     permissions:
       contents: read
       packages: write # for helm to push to GHCR