Add initial {win,linux}-arm64 target support #192

5 / 6 tasks completed

1 task still to be completed

Task	Status
Native `linux-arm64` deploy (`releases/osulazer-linux-arm64.AppImage` works as expected)	Completed
Native `win-arm64` deploy (`releases/osulazer-win-arm64-Setup.exe` works as expected + launched `osu!.exe` confirmed to be `Arm64` architecture via Task Manager)	Completed
Cross (x64) `linux-arm64` deploy (works as well from `linux-x64` as native one from what I can tell)	Completed
Cross (x64) `win-arm64` deploy (works as well from `win-x64` as native one from what I can tell, but fails on runtime when done from `linux-x64` host fwiw, no idea if cross-OS deploy is expected to work in general)	Completed
Include architecture (at least for `arm64`) also in Windows artifact filenames like `RELEASES` etc like is already done with Linux/macOS? This was seemingly also mentioned in the previous PR but without further discussion about it	Completed
Anticheat `{win,linux}-arm64` native builds (out of my control due to being proprietary etc, shouldn't exactly be difficult to pull off with modern tooling available I feel?)	Incomplete