Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to 1c006f9d6141e264961f0fed4cbd27b931580dd5
  - feat:Optimize page style of slicing management page
    
    Change-Id: I3df19a4463a65116401c96c65000c63a5a22d699
    Issue-ID: USECASEUI-369
    Signed-off-by: cyuamber <xuranyjy@chinamobile.com>
    
1 file changed