Update git submodules

* Update docs/submodules/releng from branch 'master'
  to d826e782106c84161fae89c3e185072422fa5ac7
  - Allowing seding from in Dockerfile

    https://build.opnfv.org/ci/job/functest-kubernetes-ng-opnfv-functest-kubernetes-benchmarking-v1.20-build/2/console

    Change-Id: Ia9e2f4c659c274020e14aea788bdd99b28804700
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 90d43f9..d826e78 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 90d43f97fc1459a09f7584a87dc7081ec51b6ba1
+Subproject commit d826e782106c84161fae89c3e185072422fa5ac7