Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 20cb2c4f270cbfacffacc56de1642d8762a00cf7
  - Trivy view regex

    Change-Id: I3582a039027cbde060d34be3a8638b87a9f177dd
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 15f74a2..20cb2c4 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 15f74a24503c436dfda2d3bdf59700a98cab6d7f
+Subproject commit 20cb2c4f270cbfacffacc56de1642d8762a00cf7