fix(repo-assist): remove title-prefix restriction from push-to-pull-request-branch

Agent-Logs-Url: https://github.com/githubnext/agentics/sessions/f37ad468-e5d1-44e3-a0de-84736bca8a3e

Co-authored-by: dsyme <7204669+dsyme@users.noreply.github.com>

Author: Copilot

workflows/repo-assist.md

@@ -63,7 +63,6 @@ safe-outputs:
     max: 4
   push-to-pull-request-branch:
     target: "*"
-    title-prefix: "[Repo Assist] "
     max: 4
     protected-files: fallback-to-issue
   create-issue: