Updated git submodules

Project: music master 6a0328891c81d076885bc328b6c8baefacd44639

Update cassandra docker image

Removal for issues with Kubernetes - Need to make sure any injected
files
Are chown 664 or ID is smae ID as Cassandra in Container
( Which is 999 ).

Change-Id: Ib568d94131bcd6766da202f4591f4634d1804761
Issue-ID: MUSIC-70, MUSIC-60
Signed-off-by: Thomas Nelson Jr (arthurdent3) tn1381@att.com <tn1381@att.com>

diff --git a/docs/submodules/music.git b/docs/submodules/music.git
index 2b34c93..6a03288 160000 (submodule)
--- a/docs/submodules/music.git
+++ b/docs/submodules/music.git
@@ -1 +1 @@
-Subproject commit 2b34c9375762146a48a5ea866e0dd5954e780b3c
+Subproject commit 6a0328891c81d076885bc328b6c8baefacd44639