Redirect project members to scoped page

What does this MR do?

Fix redirect from settings/members to scoped routing instead of a deprecated one.

Related to #29572 (closed)

Does this MR meet the acceptance criteria?

Conformity

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