Revert rp-connect-docs playbook branch to main (#544)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: micheleRP

local-antora-playbook.yml

@@ -23,7 +23,7 @@ content:
     branches: main
     start_paths: [docs,'*/docs']
   - url: https://github.com/redpanda-data/rp-connect-docs
-    branches: auto-docs/update-rpcn-connector-docs
+    branches: main
 ui:
   bundle:
     url: https://github.com/redpanda-data/docs-ui/releases/latest/download/ui-bundle.zip