[TD-1758] <test> add test case

<test> modify test case

[TD-1471]<fix>: empty result was returned if a database was dropped during query

Feature/os

Update cluster-ch.md

remove start condition

Merge pull request #3936 from taosdata/dependabot/maven/tests/examples/JDBC/JDBCDemo/junit-junit-4.13.1

Bump junit from 4.12 to 4.13.1 in /tests/examples/JDBC/JDBCDemo

add odbc connector

Bumps [junit](https://github.com/junit-team/junit4) from 4.12 to 4.13.1.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.12.md)
- [Commits](https://github.com/junit-team/junit4/compare/r4.12...r4.13.1)
Signed-off-by: Ndependabot[bot] <support@github.com>

Feature/td-1701

[TD-1584]<test> add some testcases for testing before 1970s

modify Jenkinsfile add branch

[feature]<TD-1507>: add a nodejs checker for nodejs examples

<test> balance jenkins load

[TD-1743]<test> add test case for remove db and STable

[TD-1497]<test> python connector check

Update cluster-ch.md