### _Why are the changes needed?_
fix https://github.com/apache/incubator-kyuubi/issues/3269
Add docs for JDBC auth provider from https://github.com/apache/incubator-kyuubi/issues/3222 shipping within 1.6.0, add jdbc.rst in /docs/security path
simplify the config docs for kyuubi.authentication.jdbc.query in /docs/deployment/settings.md by moving examples to the docs of jdbc auth provider.
### _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.apache.org/docs/latest/develop_tools/testing.html#running-tests) locally before make a pull request
Closes#3275 from bowenliang123/doc-jdbc-auth.
Closes#3275
e393f6db [liangbowen] fix config example mistakes
ab70cc8d [liangbowen] update doc for auth query sql
ebd5e194 [liangbowen] update doc description
0b15af59 [liangbowen] typo
953000fe [liangbowen] typo
ab944e73 [liangbowen] typo
e3c3d259 [liangbowen] regenerate conf docs. udpate jdbc.md.
45429ada [liangbowen] typo
3b05338e [liangbowen] add docs for jdbc authentication provider
Authored-by: liangbowen <liangbowen@gf.com.cn>
Signed-off-by: Kent Yao <yao@apache.org>
97b14f8bc3