If Build running change accept merge request when build succeeds button from orange to blue

What does this MR do?

If Build running change accept merge request when build succeeds button from orange to blue

Are there points in the code the reviewer needs to double check?

I didn't really check, but to my knowledge these changes should fix it. Would love to know how to set up working pipelines in my local build.

Why was this MR needed?

orange was to big a warning color for this button

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • 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 #24266 (closed)