Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 9d245364f1a4390700f077a9cbd20542f859151e
  - Remove offline slaves

    Change-Id: I569bcab2f888af364c42be6dd8afe60b8c2db774
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
  - Merge "Update Functest K8s test case list"
  - Update Functest K8s test case list

    Change-Id: I949e02986bd2f8edfcfbae9ec1d3b49261bc3def
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index f7bcaf5..9d24536 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit f7bcaf5e3cb4dccb34615739687a369c92956768
+Subproject commit 9d245364f1a4390700f077a9cbd20542f859151e