[CI-only] Build darwin artifacts on linux #19475
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Description
Version 1.20 of Go fixed a significant issue affecting Consul's ability to resolve DNS correctly on MacOS when cross-compiling from linux: golang/go#12524. Building Consul darwin artifacts on Mac executors, and setting the netcgo flag, was a temporary solution to resolve this limitation in go source (introduced over in #12178). Now that Consul is being built with 1.20.10, we should be ok to remove this temporary fix.
More detail is available here: https://danp.net/posts/macos-dns-change-in-go-1-20/
Testing
Pending. Please don't review/merge until tests are complete and shared here. Thanks!