Let pipeline sleep longer for MWPS

What does this MR do and why?

Describe in detail what your merge request does and why.

Ensure pipeline doesn't finish before we could click MWPS button on MR page.

Please see discussion for more details.

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.

Related to #364746 (closed)