Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 3d2a37c9bb9e9bfcf2c69f8dba4f957dc44ae936
  - Merge "Prepare Functest K8s v1.26 gating"
  - Prepare Functest K8s v1.26 gating

    Change-Id: Ibdc1e9c424a7f99b8fe4dca6e76067fdb156fb11
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 3f54e4b..3d2a37c 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 3f54e4b0b027c934db356a2fd344c161e858bbcb
+Subproject commit 3d2a37c9bb9e9bfcf2c69f8dba4f957dc44ae936