Update git submodules

* Update docs/submodules/moon from branch 'master'
  - Update to the v4.3.1 container

    Change-Id: I2fd986beb684d270e2c0c5fb718413c3e5822ad0

diff --git a/docs/submodules/moon b/docs/submodules/moon
index c93c1ca..52fe4cd 160000 (submodule)
--- a/docs/submodules/moon
+++ b/docs/submodules/moon
@@ -1 +1 @@
-Subproject commit c93c1ca35e3819501140d4c569c44040417400fa
+Subproject commit 52fe4cd3ea4579d7a61eaf2f97846ed7665b741d