Update git submodules

* Update docs/submodules/apex from branch 'master'
  - Show ansible tasks as they complete

    Change-Id: I1b68d70fd97076a7f2ca68091a6e94d87b72efa2
    Signed-off-by: Dan Radez <dradez@redhat.com>

diff --git a/docs/submodules/apex b/docs/submodules/apex
index 8d3d5e6..8669c68 160000 (submodule)
--- a/docs/submodules/apex
+++ b/docs/submodules/apex
@@ -1 +1 @@
-Subproject commit 8d3d5e679fba8e4140730e60809fc4f71cdc098e
+Subproject commit 8669c687a75a00106b055add49b82fee826b8fe8