Update git submodules

* Update docs/submodules/apex from branch 'master'
  - Merge "Removes ignoring errors on congress config"
  - Removes ignoring errors on congress config

    Now that congress has been fixed this should always work.

    Change-Id: I701707b8b91b340289613bdb31fa91456743d233
    Signed-off-by: Tim Rozet <trozet@redhat.com>

diff --git a/docs/submodules/apex b/docs/submodules/apex
index 15d8c6b..dd66953 160000 (submodule)
--- a/docs/submodules/apex
+++ b/docs/submodules/apex
@@ -1 +1 @@
-Subproject commit 15d8c6b0dff0153a5d106d827442e65fe4c9b559
+Subproject commit dd669539ffa924a06f04237a2177422403d82c7b