AsteroidStation minimum player count required 34 -> 40

[ToasterBiome]

Document the changes in your pull request

Asteroid is a huge map and anything under 35 (because 50% of people are ghosted) players makes it feel empty

Also there should never be a situation in the world where a population fit for GaxStation (max 40 players) is also fit for AsteroidStation (min 40 players)

Changelog

:cl:
tweak: AsteroidStation requires 40 players minimum instead of 34 /:cl:

[MenacingManatee]

Seeing how often there's been a situation where asteroid has ~20 or fewer players due to the way maps are chosen, bumping the count up a bit seems reasonable