Fix create_merge_request_with_secure_spec

What does this MR do?

Fixes qa/specs/features/ee/browser_ui/secure/create_merge_request_with_secure_spec.rb by updating expectation text.

Closes: #32634 (closed)

Conformity

• [-] Changelog entry
• [-] Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• Separation of EE specific content