Propose updating to Mattermost v3.7

[lindy65]

Hi!

Mattermost 3.7.3 has been released which contains a security update. You can view the full changelog for v3.7 here and find download links with hash numbers here.

Wondering if you'd like to help update the Kubernetes Installer for Mattermost to v3.7?

If you do update, please consider tweeting about it, which we can then retweet for greater reach.

Also, feel free to join the Mattermost Installers community channel for latest news relevant to installer owners.

Thanks!