Update git submodules

* Update docs/submodules/releng from branch 'master'
  to f7af3b84df7f08ab7bcb41f5ec6b43ce0a04ba6b
  - Create Xtesting 2024.2 tag

    Change-Id: I842c293e8696eb15536b9a3789ce217c2c82149b
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index da4a937..f7af3b8 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit da4a93761849526cd8914c17a1cdf68f29a4db85
+Subproject commit f7af3b84df7f08ab7bcb41f5ec6b43ce0a04ba6b