[BUG] GE-Proton download doesn't filter architecture

[GloriousEggroll]

Just a heads up -- GE-Proton now has -aarch64 builds, I got a bunch of misreports due to ProtonPlus downloading the aarch64 version instead of the standard x86 version. aarch64 builds and shasums end in -aarch64.

[MithicSpirit]

Dupe of #1065 (this one technically came first, but the other is more detailed).

[Vysp3r]

Closing since it's a dupe, but thank you still :)