Reduce integrity verify test coverage for the 2.4 → 2.5 upgrade path to a minimal smoke set (3 tests), and remove or skip the remaining 22 tests in tests/integrity/verify_data/upgrade_24_to_25/. Full upgrade coverage remains focused on moving customers to 2.6 from both 2.4 and 2.5.
Outcome: ~22 fewer tests run for 24→25 scenarios, with no loss of coverage for 2.6-targeted stories.