CI: Topology refactoring operation tests

[renecannao]

Summary

Orchestrator supports topology refactoring operations (move-up, repoint, relocate, etc.) but none are tested in CI.

Proposed Tests

• move-up: move a replica one level up in the topology (e.g., mysql3 from mysql2 to mysql1)
• repoint: repoint a replica to a different master using GTID
• relocate: let orchestrator choose the best method to move a replica
• make-co-master: establish co-master topology
• take-master: swap master and replica roles
• Verify each operation updates the topology correctly

Acceptance Criteria

• At least 3 refactoring operations tested (move-up, repoint, relocate)
• Tests verify topology state after each operation via API
• Tests restore clean topology state after each test
• Tests integrated into CI workflow