Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to a7589978ffc6f942d74b7c45df61c6f090bfa991
  - Merge "feat: Local simulation data and display on the Slicing task management page"
  - feat: Local simulation data and display on the Slicing task management page

    Change-Id: I56fb1fbbb63e490980a4d1f4d9d148d825f311f6
    Issue-ID: USECASEUI-352
    Signed-off-by: cyuamber <xuranyjy@chinamobile.com>

diff --git a/docs/submodules/usecase-ui.git b/docs/submodules/usecase-ui.git
index 4e6ba2b..a758997 160000 (submodule)
--- a/docs/submodules/usecase-ui.git
+++ b/docs/submodules/usecase-ui.git
@@ -1 +1 @@
-Subproject commit 4e6ba2bf4bf47a5c1b3388b3af20e8238b80ccbd
+Subproject commit a7589978ffc6f942d74b7c45df61c6f090bfa991