[KYUUBI #4324] Add Publish docker image step

### _Why are the changes needed?_

Add Publish docker image step. The step details is maintained by docker repo.

### _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

- [ ] [Run test](https://kyuubi.readthedocs.io/en/master/develop_tools/testing.html#running-tests) locally before make a pull request

Closes #4324 from ulysses-you/release.

Closes #4324

0f6a6646 [ulysses-you] Add Publish docker image step

Authored-by: ulysses-you <ulyssesyou18@gmail.com>
Signed-off-by: ulyssesyou <ulyssesyou@apache.org>

docs/community/release.md

@@ -49,6 +49,8 @@ The release process consists of several steps:
 6. If necessary, fix any issues and go back to step 3.
 7. Finalize the release
 8. Promote the release
+9. Remove the dist repo directories for deprecated release candidates
+10. Publish docker image
 
 ## Decide to release
 
@@ -280,3 +282,6 @@ svn delete https://dist.apache.org/repos/dist/dev/kyuubi/{RELEASE_TAG} \
   --message "Remove deprecated Apache Kyuubi ${RELEASE_TAG}" 
 ```
 
+## Publish docker image
+
+See steps in `https://github.com/apache/kyuubi-docker/blob/master/release/release_guide.md`