[Proposal] DataFusion monthly online meetup

### Is your feature request related to a problem or challenge?

DataFusion is such an exciting project, with so many great contributors and so many users that are building useful systems on top of it. It would be great get together, entirely online, once per month for one hour.

### Describe the solution you'd like

We can meet through the Discord meeting feature, maybe even find a way to also have breakout rooms, where subgroups might meet to discuss a specific issue, a specific idea, a specific theme.

### Describe alternatives you've considered

Keeping the interactions fully asynchronous, using GitHub issues, discord or slack.

### Additional context

I have recently took part to the Apache DataFusion Comet bi-weekly community meeting and I loved it.

The issue contains no files, tests, or code entry points to inspect. Start by reviewing the proposal's suggested monthly online meetup and its Discord and asynchronous alternatives; done would require an agreed, maintainable meetup plan.

Written by the indexing model from the issue text.