Update Homebrew for 0.9.0

[rubenpoppe]

• Updated version to 0.9.0, removed openssl dependency
• Added architecture checks

[nyurik]

@rubenpoppe thx for contributing! What's the process of getting the SHA of the releases? Also, do you have any experience with automating this?

I want to do another release, probably in the next hour or so, before making this change.

[rubenpoppe]

Not much experience with automating that unfortunately but I think it shouldn't be too difficult. I've now manually ran shasum -a 256 martin-{arch}.tar.gz. If you could add that to the ci workflow to calculate the hashes and update the file accordingly it's maybe achievable.