Use releasebot token for PR creation in regenerate-cli-help-messages

Instead of using the default GITHUB_TOKEN, use the releasebot token to
ensure workflows run on pull requests created by these PRs. Docs:
https://docs.github.com/en/actions/writing-workflows/choosing-when-your-workflow-runs/triggering-a-workflow?utm_source=chatgpt.com#triggering-a-workflow-from-a-workflow

Author: lbarcziova

.github/workflows/regenerate-cli-help-messages.yml

@@ -36,3 +36,4 @@ jobs:
           title: "Update help messages of CLI commands"
           body: "Automatically regenerated help messages for CLI command docs."
           delete-branch: true
+          token: ${{ secrets.RELEASEBOT_GITHUB_TOKEN }}