Update git submodules

* Update docs/submodules/appc/deployment.git from branch 'dublin'
  to 4b1967d84f96960a1a0013035fab2aa7fd6cf377
  - Update cdt for nodejs backend

    Change cdt container to use a nodejs container so
    that the nodejs backend of cdt can run.

    Change-Id: I280bc02bee136bb1eda908f91e7efacfca8eb101
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1600
    (cherry picked from commit 57eafffb6fcbcac82b021e8adcd80fcec58d8ae2)

diff --git a/docs/submodules/appc/deployment.git b/docs/submodules/appc/deployment.git
index b2e6312..4b1967d 160000 (submodule)
--- a/docs/submodules/appc/deployment.git
+++ b/docs/submodules/appc/deployment.git
@@ -1 +1 @@
-Subproject commit b2e631247a19c3b3825e2eec336ad17669d42215
+Subproject commit 4b1967d84f96960a1a0013035fab2aa7fd6cf377