Add comment about next steps in the auto generated SDK to help user

SDK is generated by GitHub agent workflow for management plane and release planner asks user to review it and make it ready. Sometimes, a user will need to make additional changes like add tests, or fix build errors. Auto generated SDK PR should include a comment to guide the user about next steps and how to do it to help user with next steps.

Instruction should guide the user to utilize azsdk agent locally to help troubleshoot any build errors.

- Checkout the PR
- Add tests(if required)
- Use azsdk agent locally to troubleshoot any build and pipeline failures
- Push the changes to PR once package changes are ready.

Start by locating the GitHub agent workflow that creates management-plane SDK pull requests and the place where PR comments are assembled. Use the requested checkout, testing, azsdk agent troubleshooting, and push steps as the comment content; done means generated SDK PRs include this guidance for review and follow-up fixes.

Written by the indexing model from the issue text.