[HOTFIX] Remove duplicate closing brace in publish_release script
[HOTFIX] Remove duplicate closing brace in publish_release script

### What is this PR for?
Maven artifact publish script fails to close staging repository programmatically because of the duplicate closing braces.

### What type of PR is it?
Bug Fix

### Questions:
* Does the licenses files need update? no
* Is there breaking changes for older versions? no
* Does this needs documentation? no

Author: Mina Lee <bb9c4f68b7c04206772f92363630483486088f46@apache.org>

Closes #1127 from minahlee/hotfix/removeDuplBrace and squashes the following commits:

608d648 [Mina Lee] Remove duplicate closing brace

(cherry picked from commit 967d71d4ae6c1ab82213b3121031fd9fd71edfb4)
Signed-off-by: Mina Lee <bb9c4f68b7c04206772f92363630483486088f46@apache.org>

brigade/incubator-zeppelin,brigade/incubator-zeppelin,brigade/incubator-zeppelin,brigade/incubator-zeppelin,jlagarden/zeppelin,yorek/zeppelin,yorek/zeppelin,yorek/zeppelin,jlagarden/zeppelin,jlagarden/zeppelin,brigade/incubator-zeppelin,yorek/zeppelin,brigade/incubator-zeppelin,yorek/zeppelin,yorek/zeppelin,jlagarden/zeppelin,jlagarden/zeppelin,yorek/zeppelin,jlagarden/zeppelin,jlagarden/zeppelin,brigade/incubator-zeppelin