chore: test trigger of external workflow

Author: collins-w

.github/workflows/release-docker.yml

@@ -119,5 +119,5 @@ jobs:
               owner: 'openzeppelin',
               repo: 'openzeppelin-relayer-infra',
               workflow_id: 'stg.yml',
-              ref: 'aws-infra'
+              ref: 'main'
             })