Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Remove duplicated code related to snaps creds"
  - Remove duplicated code related to snaps creds

    Add support for providing credentials in snaps_utils.

    JIRA: FUNCTEST-916

    Change-Id: I3e027229d213d3791a115920f7012309cc027712
    Signed-off-by: Juha Kosonen <juha.kosonen@nokia.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 03c3f4c..8296b68 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 03c3f4c2bd1635383cb64168b52e4d8540056942
+Subproject commit 8296b68bbb2e6da34676af2c1e81e264c626296c