Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 19238be561fabd756258132a60f858aae3ce56de
  - Install py3.10 too

    Change-Id: I2743b470af31ba50be5ae431bb1ca4e0279654cc
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 9604f51..19238be 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 9604f5145ba3614e2255db9cccf20dd2973ccd5c
+Subproject commit 19238be561fabd756258132a60f858aae3ce56de