### _Why are the changes needed?_
- allow using the session's user/password to connect database in the JDBC engine
- it is allowed to be applied on any share level of engines, since every kyuubi session maintains a dedicated JDBC connection in the current implementation
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible
- [ ] Add screenshots for manual tests if appropriate
- [x] [Run test](https://kyuubi.readthedocs.io/en/master/contributing/code/testing.html#running-tests) locally before make a pull request
Closes#5120 from bowenliang123/jdbc-user.
Closes#5120
7b8ebd137 [liangbowen] Use session's user and password to connect to database in JDBC engine
Authored-by: liangbowen <liangbowen@gf.com.cn>
Signed-off-by: liangbowen <liangbowen@gf.com.cn>
9a001c8d7c