x/build/cmd/release: confirm selection of darwin/arm64 releaselet macOS version for next minor release #49889
Description
We should confirm which macOS version will be used for building darwin/arm64 binaries for the next Go 1.17.4 (and 1.16.11) minor releases, and whether any changes need to be done to avoid breaking compatibility with either macOS 11 or 12.
See https://go-review.googlesource.com/c/build/+/365736/3/cmd/release/release.go#222 for details.
CC @golang/release, @cherrymui.