[git] : update submodule ref

diff --git a/lib/mezzanine-organization b/lib/mezzanine-organization
index e30ab1270da5993a06037745a8a3496fb45e7bc0..09c4c7c45efc85e4ff025902478bd34b7e3e71dc 160000 (submodule)
--- a/lib/mezzanine-organization
+++ b/lib/mezzanine-organization
@@ -1 +1 @@
-Subproject commit e30ab1270da5993a06037745a8a3496fb45e7bc0
+Subproject commit 09c4c7c45efc85e4ff025902478bd34b7e3e71dc