test: valgrind case

refactor: let transfer leader msg to be sent even when the dnode exiting

feat: add time unsynced check

test: restore some 2.0 cases

test: add test case for last_row , only with case ,not run CI 

fix(query): handle multi group last_row query.

fix(query): add leastsquares function scalar version

test: restore case

enh: add schedule policy

doc: english version of cache

test: restore some 2.0 cases

refactor(sync): optimized replication

doc: move cache to internals and totally rewrite it

* feat(taosAdapter): taosAdapter for 3.0

* chore: change upx download location
Co-authored-by: Nt_max <1172915550@qq.com>

fix: a problem of last_row function plan

test: restore some cases