Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Apex: increase deploy timeout by 20 min

    Change-Id: I3e5a08996e896bcf7b88c97b503de414f7f3ee71
    Signed-off-by: Tim Rozet <trozet@redhat.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 2356471..8c9c964 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 2356471ea955bea6e724fff354636f7963527963
+Subproject commit 8c9c9640b1dddda0c228eaf5caf7855ed01fc967