Update git submodules

* Update docs/submodules/releng from branch 'master'
  to fbe3476573a6662864d2e3e8f3c97087e899a816
  - Run trivy vs latest containers

    Change-Id: I6504933edf511bdd9d9345aea48d292dad0fe682
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 592b331..fbe3476 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 592b3316231fe69d1e812112936df307bcbf6af5
+Subproject commit fbe3476573a6662864d2e3e8f3c97087e899a816