Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to cf5b7493eb7dffdeb211af056ce8459ede89292a
  - Merge "Ignore unknown properties in the camunda response"
  - Ignore unknown properties in the camunda response

    Ignore unknown properties in the camunda response so doesnt fail on
    timestamp.
    Updated unit test to account for changes to object mapper.

    Issue-ID: SO-2990
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I15c064f7e93307f921c07d4aaa42122a5f93c380

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index c919ee2..cf5b749 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit c919ee261f665b824e716e77b5cc358ec15e44a9
+Subproject commit cf5b7493eb7dffdeb211af056ce8459ede89292a