* [TD-14358]<fix>: remove python connector from TDengine

* [TD-14358]<fix>: use standalone python connector

* add python clone in TDinternal

* git clean before checkout

* git clean before checkout

* fix: remove python connector

fix test requirements.txt

[TD-14358]

* restore .gitmodules

* Revert "[TD-13408]<test>: move tests directory out"

This reverts commit 7db7bd9337cedc4cd0e3f3b16618b97d09791eaa.

* revert to make tests back

* immigrate file change in stand-alone repo to TDengine

* remove tests repository checkout
Co-authored-by: Ntangfangzhi <fztang@taosdata.com>

* [TD-13408]<test>: move tests directory out

* restore Jenkinsfile due to tests dir removal

* add --remote parameter to git submodule update

* git reset hard before checkout to branch

* call git submodule update for some submodules

* remove tests directory before checkout due to conflict

* as all branches remove tests, no need to remove it in script
Co-authored-by: Ntangfangzhi <fztang@taosdata.com>

[TD-12532] <fix> (other):Modify the operation steps of installing third-party libraries when using the test framework