Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Update get_openstack_version()

    It takes Rocky maximum version into account.

    Change-Id: I55469de4a63f1f824222660130a20d7fd8fa42c3
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index b6fdf89..2098c49 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit b6fdf896bf87ed23ff766fe59f2072fe8844f2ed
+Subproject commit 2098c49184b1c97b89b4d88dffa2e2a9b3571f04