Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 9e56e4a4486d3ab9a4a53884514f44ff36fde4cb
  - Exclude podman jobs if rockylinux

    Change-Id: Id15b41199ebc7b4ddefed43db0e720fa38e29e64
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index dd51656..9e56e4a 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit dd51656c507c6dead284cf4a1679d241fc59d557
+Subproject commit 9e56e4a4486d3ab9a4a53884514f44ff36fde4cb