Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 15f74a24503c436dfda2d3bdf59700a98cab6d7f
  - Fix trivy view regexes

    It's not a multijob as the other entry jobs.

    Change-Id: I88e385ff64b3fdb4a731a25fe9193ed07a29d421
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 733296a..15f74a2 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 733296a44afeb2b1585b2793edc42100c40ecb42
+Subproject commit 15f74a24503c436dfda2d3bdf59700a98cab6d7f