* Test: Verify RisingWave DML operations (INSERT, UPDATE, DELETE) support * Test: Refine RisingWave DML test (remove sleeps, use polling)
* Add RisingWave catalog tests for S3 tables * Add RisingWave catalog integration tests to CI workflow * Refactor RisingWave catalog tests based on PR feedback * Address PR feedback: optimize checks, cleanup logs * fix tests * consistent