Update git submodules

* Update docs/submodules/ccsdk/cds.git from branch 'master'
  to 68500192d7e77bca74e411b1fda38b4a4f598dc5
  - Fix docker tag

    command-executor was using the default timestamp format when creating
    docker tag, which is invalid and breaks docker build.  Added maven
    property setting to change timestamp format to remove offending
    dashes.

    Change-Id: I102340d493a5b9c03ca1a9e10f1bd51fc4b582d1
    Issue-ID: CCSDK-1287
    Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>

diff --git a/docs/submodules/ccsdk/cds.git b/docs/submodules/ccsdk/cds.git
index f2136a4..6850019 160000 (submodule)
--- a/docs/submodules/ccsdk/cds.git
+++ b/docs/submodules/ccsdk/cds.git
@@ -1 +1 @@
-Subproject commit f2136a47fd53fcbdc117899c6e134d7ceea46d85
+Subproject commit 68500192d7e77bca74e411b1fda38b4a4f598dc5