fix(query): fix pthread_create memleak in when shell exit

ci: ignore return value while check changed files if it is a docs PR

Co-authored-by: Shuduo Sang <sangshuduo@gmail.com>

opti: group by tag

ci: if all changed files are in docs/en or docs/zh, make it a docs PR…

TD-17791

TD-17791

refactor(sync): modify config file len

fix(query): fix bug in descending order scan in lastblock.

feat(stream): steam state window delete result

fix: fix memory leak issue

release: merge from main to 3.0

* fix(driver): jdbc sample for 3.0

* fix: drop table if exists

* test: valgrind case
Co-authored-by: NShengliang Guan <slguan@taosdata.com>
Co-authored-by: Shuduo Sang <sangshuduo@gmail.com>

fix(query): add one more condition check when merge file block and last block.

fix(query): add one more condition check when merge file block

test: valgrind case

docs: merge CONTRIBUTING files from develop branch