Update group bulk edit issues user docs

What does this MR do and why?

This MR adds a premium label to the group bulk editing part of the docs because it is premium in the code and the label was lost during a docs refactor

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How to set up and validate locally

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.