Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to 346bb21861dab190d928ad873dfd2f8eb496a05d
  - Add release job with docker node!
    
    Issue-ID: USECASEUI-412
    Change-Id: Ic08aaaab326862aeaa5052f6fe55135c2bdb6e78
    Signed-off-by: hekeguang <hekeguang@chinamobile.com>
    
1 file changed