Fix Homebrew runs on M1

[pepicrft]

Fixes #2704

Short description 📝

As mentioned here, tuist up fails to run brew because the Homebrew path is different in M1 laptops. As suggested by @fortmarek, I'm updating the code to let env determine the right brew version.

Checklist ✅

• The code architecture and patterns are consistent with the rest of the codebase.
• The changes have been tested following the documented guidelines.
• The CHANGELOG.md has been updated to reflect the changes. In case of a breaking change, it's been flagged as such.
• In case the PR introduces changes that affect users, the documentation has been updated.

[luispadron]

🚀

[ferologics]

Curious if the "/usr/bin/ruby" on line 50 in UpHomebrew.swift should also be using the "/usr/bin/env" to check for correct path?

[pepicrft]

Curious if the "/usr/bin/ruby" on line 50 in UpHomebrew.swift should also be using the "/usr/bin/env" to check for correct path?

That one should be updated too :)