Update git submodules

* Update docs/submodules/apex from branch 'master'
  - Fixes missing csit queens file in setup.cfg

    Change-Id: I6d57c88efc88dba311e79a36024683d5a9ade679
    Signed-off-by: Tim Rozet <trozet@redhat.com>

diff --git a/docs/submodules/apex b/docs/submodules/apex
index 82a9bec..a8fdc5d 160000 (submodule)
--- a/docs/submodules/apex
+++ b/docs/submodules/apex
@@ -1 +1 @@
-Subproject commit 82a9bec67b094f6381acb035a9efeffe47b011ab
+Subproject commit a8fdc5d15ecf48a4eff2d5c160f62661d37c0f4e