Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to d142602d51950702bc3e16fabad80bffc3c619ab
  - Merge "Add test for CreateSliceService flow"
  - Add test for CreateSliceService flow

    Issue-ID: SO-2368

    Cover prepareDecomposeService, processDecomposition,
    prepareCreateOrchestrationTask, sendSyncResponse

    Change-Id: I9f36c8055b708f0c04acbf1d575dfcc2da5ed55d
    Signed-off-by: Harry Huang <huangxiangyu5@huawei.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 026f119..d142602 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 026f119488590eb4b96a202fcc9490a91b2da01b
+Subproject commit d142602d51950702bc3e16fabad80bffc3c619ab