Update git submodules

* Update docs/submodules/releng from branch 'master'
  to ba8a3f2f1399b11b88fbc9f55c502fc1315b3069
  - Update community.docker if focal

    Change-Id: I01f363a5086b16e14a526f2e4be2c05327d8e762
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 350a7f3..ba8a3f2 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 350a7f30d3f7ab3021ab0c47f272e1d3adca741c
+Subproject commit ba8a3f2f1399b11b88fbc9f55c502fc1315b3069