Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 86b2d36e3dabd2e781d7a63063680d1f2776a254
  - Merge "CamundaClient not handle operationType used by Activate5GSliceServiceInstances"
  - CamundaClient not handle operationType used by Activate5GSliceServiceInstances
    
    Issue-ID: SO-2911
    
    Change-Id: I23a7628359439adeeec9f22302f64f4441939897
    Signed-off-by: hetengjiao <hetengjiao@chinamobile.com>
    
diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 2799a5b..86b2d36 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 2799a5ba78048740e188a758d0f65ccc572293fe
+Subproject commit 86b2d36e3dabd2e781d7a63063680d1f2776a254