Merge pull request #1235 from vyos/claude/t9047-docker-ref

ci: T9047: dispatch docker-image rebuild against production ref

Author: c-po

.github/workflows/trigger-docker-image-build.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
 
     env:
-      REF: main  # Used for curl to trigger image build
+      REF: production  # Used for curl to trigger image build
 
     steps:
       - name: Checkout vyos/vyos-build repo