Update git submodules

* Update docs/submodules/releng from branch 'master'
  to b5727972e26ea4ca373c8d4452158ac596672343
  - Make XtestingCI jobs weekly

    It also optimizes /run mount to manage
    both docker and podman.

    Change-Id: I4808b331106df0035026a98f8dfa0f38c842057a
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 8cda8a4..b572797 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 8cda8a4452dd6aae48051f8566452d1f5fa073cd
+Subproject commit b5727972e26ea4ca373c8d4452158ac596672343