Squirrel.Windows does not support ARM64

[t3chguy]

Context electron-userland/electron-builder#7492

Looks to have last been updated (to 1.9.0) in 2018 - bcaa752 - https://github.com/develar/Squirrel.Windows has lagged equally far behind

[t3chguy]

Related #33

[mmaietta]

This should be resolved with the squirrel upgrade in electron-userland/electron-builder#8344

[theAeon]

awesome, now to pester all the 20 million electron apps to port their stuff

[t3chguy]

1 fewer to ping: element-hq/element-desktop#624 - seems to work great