Increase wait time on pipeline and merge status

What does this MR do?

I couldn't reproduce #254963 (closed) locally but it is likely that 30s wait could be too short for both pipeline status and MR status on MR page. Increase both wait time from 30s to 60s to help increase test stability.

Conformity

• [-] Changelog entry
• [-] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content

Closes #254963 (closed)