Fix broken link to CI troubleshooting doc from merge requests
What does this MR do and why?
This MR fixes a broken link in merge requests that pointed to an old location to CI debugging documentation, which was renamed by !135558 (merged). On Gitlab.com this link is properly redirected, but this is not the case for self-managed instances and instead a 404 is returned.
MR acceptance checklist
Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.
How to set up and validate locally
- Create a new merge request on a self-managed instance
- Push a change to the MR's source branch and immediately reload the MR in the browser
- At the top of the overview section, the message "Checking pipeline status" will be visible with a help icon:
- Click on the help icon
- Expected result with this MR: The CI Debugging page will load at
<host>/help/ci/debugging.md
