Add 'less' as a dependency to 'bat' formula

I have found that the ‘bat’ formula works much better on macos if homebrew ‘less’ is installed vs the ancient ‘less’ that ships with macos due to better mouse support out of the box. This issue captures the discussion.

Seems to me that ‘less’ should be a dependency of ‘bat’. What is the best way to make this enhancement? Should I just open a PR on the bat formula, or open a homebrew-core github issue first?

Just open a pull request.