support for m1 Mac machines - homebrew

[rbentaarit]

when running
brew install kwt
I'm getting:

Installing kwt
kwt: The x86_64 architecture is required for this software.
Error: kwt: An unsatisfied requirement failed this build.

[aaronshurley]

Thanks @rbentaarit. We're tracking this here as well: carvel-dev/kwt#28