Merge remote-tracking branch 'upstream/master' into sysvar-api-cleanup

* upstream/master:
  ddl/schematracker: fix SetDDL will cause data race (pingcap#36768)
  planner: check virtual column for tiflash (pingcap#36771)
  *: replace defer clean with t.Cleanup (pingcap#36722)
  ddl: fix inaccurate row_count for `admin show ddl jobs` (pingcap#36716)
  config, sysvar: add config `instance.enable_ddl` and sysvar `tidb_enable_ddl` (pingcap#35425)
  *: enable part revive for all code (pingcap#36703)