Update brew list command to remove deprecation warning

[soilSpoon]

brew list does not support TTY. So a raises a warning or error when used with pipe.
This PR solves the above situation.

Ex)

❯ /opt/homebrew/bin/brew list | grep php
Error: Calling `brew list` to only list formulae is disabled! Use `brew list --formula` instead.

❯ /usr/local/bin/brew list | grep go
Warning: Calling `brew list` to only list formulae is deprecated! Use `brew list --formula` instead.
go

Reference

Homebrew/brew#8851
Homebrew/brew#8229

[drbyte]

Thanks for catching this.

We should probably release this fix quickly as it may be affecting some installs, as mentioned in the linked Valet issue.