Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Apex: add missing fetch-logs to jobs list

    Change-Id: I28e4b613d92c43d32e95f8e1b4f4a4e2db102bc5
    Signed-off-by: Tim Rozet <trozet@redhat.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 979cef9..3f7ed73 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 979cef911006bde631ac28f7154b3db082d10ef5
+Subproject commit 3f7ed739246588580bb41e608e67a8f8d663d30d