### _Why are the changes needed?_
Fix typo and wording for JDBCMetadataStoreConf.
### _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#2919 from lightning-L/typo-1.
Closes#2919
f02ffb8a [Tianlin Liao] fix typo and wording for JDBCMetadataStoreConf
Authored-by: Tianlin Liao <tiliao@ebay.com>
Signed-off-by: Fei Wang <fwang12@ebay.com>