Makefile: Add darwin/arm64 build to release binaries

[mathew-fleisch]

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[CLAassistant]

All committers have signed the CLA.

[stale]

Hi! This issue has been automatically marked as stale because it has not had any
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[mathew-fleisch]

Can someone look at and respond to my PR?

[owen-d]

Sorry about the delay! Wonderful change, thank you :)

[mathew-fleisch]

Thanks @owen-d I wanted to make this change so the asdf-plugin for loki-logcli would install the correct binary for each host system. Check out the asdf version manager project if you don't already know about it. One problem I see with this change is that there will only be darwin-arm64 binaries for the next version and beyond. I don't know of a way to go back to each previous version and backfill darwin-arm64 binaries for previous versions. If you have any thoughts or suggestions, it would be nice to have, but this is already great to get in there as is. Thanks again!