Fix pipeline quota link

What does this MR do?

Fixes broken link in Group settings that should point to pipeline quota and was pointing to audit events.

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Tests
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #2158 (closed)