Provide a slimed down version of Sentry self-hosted

### Problem Statement

Over the years, the product we offer at Sentry has grown rapidly in features but also complexity. I do remember when I first started to self-host Sentry, this was around the 9.x days, and how little of a VM you could use to get everything running.

Today, you need a much beefier machine, given the countless features and resulting docker containers the setup requires.

### Solution Brainstorm

It might be worth thinking about whether we can offer a more light, stripped-down version of self-hosted Sentry that only supports a few core features.
I'm aware that this won't be an easy task, as so many features are now intertwined with each other.