Update Rocket Chat to latest version and test functionality

[mariobehling]

Rocket Chat is currently switched off. Please re-activate it and ensure the latest version is running nicely with eventyay.

[maze-runnar]

Rocket Chat is currently switched off. Please re-activate it and ensure the latest version is running nicely with eventyay.

@mariobehling is the rocket chat not working for new created events only? (Had not checked with new event yet)
I had a draft event, I just edited it's dates, and rocket chat seems to working there -

Event : https://eventyay.com/e/6e378559