Continuous testing for windows runners

[ChipWolf]

Let's add a test for windows runners

Originally posted by @ChipWolf in #104 (comment)

[okafke]

Yeah, currently testing this and it seems like the placement of the game dir seems to be an issue

mc-runtime-test/action.yml

Line 57 in 2a5a5bc

hmc.gamedir=$PWD/run

Downloading file: headlessmc-launcher-2.7.0.jar to: D:\a\Test\Test

These paths might be interpreted differently

[16:17:46] [main/INFO] [ProcessFactory]: Game will run in \d\a\Test\Test\run

[ChipWolf]

I'm in the process of this, I'm just trying to understand why we're running builds based on the content of a commit message @okafke