* fix(test):C# example ineffective in CI under TDegnine/example (#14472)

* fix(test):C# example ineffective in CI under tdegnine/example

* fix(test):C# examples add into CI cases.task

* test(fix):update C# CI example target framework to NET 6.0

* fix(test):C# example in CI, path incorrect

* fix(test):C# example CI ineffective

* fix(test):C# example CI taosdemo realese path incorrect

* fix(test):change C# ci example targetframe work to net5 in 2.6 branch

* 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-12522]<enhence>(connector):csharp test cases update to follow self describe standard

* [TD-12522]<enhance>(connector):fix resourceRepositoryUrl

* [TD-12522]<enhence>(connector):fix with review comments