* 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

* chore: update taos-tools

for 2.6

* test: change taosbenchmark test cases

* fix: outdated test cases

* fix: query/nestedQuery/nestedQuery.py

* fix: update taos-tools
Co-authored-by: Nzhaoyanggh <yzhao@taosdata.com>

* test: add test case for TS-1613

* fix: fixed connection error if -h was used

* fix: assign port if -P is specified

* fix: windows read env
Co-authored-by: NPing Xiao <pxiao@taosdata.com>
Co-authored-by: Nxywang <xywang@taosdata.com>
Co-authored-by: NYang Zhao <yzhao@taosdata.com>