Update group_access_tokens.md
What does this MR do and why?
Clarify that Group access tokens and project access tokens cannot be used to create other resource tokens.
Related issue: #352618 (comment 894978473)
Screenshots or screen recordings
These are strongly recommended to assist reviewers and reduce the time to merge your change.
How to set up and validate locally
Numbered steps to set up and validate the change are strongly suggested.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
-
I have evaluated the MR acceptance checklist for this MR.