Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to 8707107f01cafcb77c898333ec20fa7b263c7fe3
  - feat:optimize api url and mock json of service-list page
    
    Change-Id: I22cfa697dd4b1d4494bc7184a4163c7da013f48e
    Issue-ID: USECASEUI-307
    Signed-off-by: cyuamber <xuranyjy@chinamobile.com>
    
1 file changed