cdc: fix incorrect resolved ts timeout (#8573)
cdc: fix incorrect resolved ts timeout (#8573)

Signed-off-by: 5kbpers <82ce634e1749ff1c036c2970dd69219ac9501357@pingcap.com>
c4pt0r/tikv,pingcap/tikv,pingcap/tikv,BusyJay/tikv,BusyJay/tikv,BusyJay/tikv,BusyJay/tikv