test: add asan case

fix:  fix mem leak 

refactor(sync): add trace log

fix: memory leak while subscribe

docs: release 3.0.1.8

fix: asan problems for rsma

fix:support scalar function with fill

fix: duplicated explain response issue

fix(tmq): time wait

fix： query failed issue caused of db dropped

fix(query): check for null ptr before extracting info

test/update vnode

fix(tdb/pcache): type nPages as nPage

fix: [ASAN] fix nullpointer issue in tdatablock.c