Merge branch 'mattermost-9.7.1' into 'master'

Update Mattermost to 9.7.1

See merge request https://gitlab.com/gitlab-org/omnibus-gitlab/-/merge_requests/7551

Merged-by: Andrew Patterson <[email protected]>
Approved-by: Clemens Beck <[email protected]>
Approved-by: Andrew Patterson <[email protected]>
Co-authored-by: Akis Maziotis <[email protected]>

Author: Andrew Patterson

config/software/mattermost.rb

@@ -18,10 +18,10 @@
 
 name 'mattermost'
 
-default_version '9.6.1'
+default_version '9.7.1'
 
 source url: "https://releases.mattermost.com/#{version}/mattermost-team-#{version}-linux-amd64.tar.gz",
-       sha256: 'ff3908dce8a068dd89742ed43c23a926177dabda0cdbdd7737a18fc7ced3a8eb'
+       sha256: '52a808ae20f808dce8052ba4f67727b8db638c5951b7323806f0f9f9f67628a1'
 relative_path 'mattermost'
 
 license_name = 'GITLAB-MATTERMOST-COMPILED-LICENSE.txt'