7.3.1

https://github.com/RocketChat/Rocket.Chat/releases/7.3.1

What's Changed

• ci: sync with 6.x (do not delete branch) by @debdutdeb in #69
• Fix: Add mount-observe and system-observe plug to snap by @sporqist in #61
• feat: sync develop with newest 7.x version changes by @debdutdeb in #72

Full Changelog: 6.5.3...7.3.1