Update git submodules

* Update docs/submodules/apex from branch 'master'
  - Removes using https with rdo-release

    We dont need to use https with rdo-release and it can
    cause issues for ansible.

    Change-Id: I081228a05d68f987fa02480bcd1bf216573550f1
    Signed-off-by: Tim Rozet <trozet@redhat.com>

diff --git a/docs/submodules/apex b/docs/submodules/apex
index 9838d8d..aa40079 160000 (submodule)
--- a/docs/submodules/apex
+++ b/docs/submodules/apex
@@ -1 +1 @@
-Subproject commit 9838d8dfd4e3bb481876d135462dfdea22e8da8b
+Subproject commit aa40079de9af3f11e05d79aa426cd491661cd64d