Add an opt-out of this behaviour.

to GitHub Releases

This API authentication path will be disabled on Nov 13 2020.

- This was suggested in https://github.com/Homebrew/brew/pull/8741#discussion_r490949486.

- I was going through the `sorbet/files.yaml` moving various things to
  `true`, playing around locally, and happened upon some files that it
  was tracking that had been deleted.
- We want to do some automation of new files, but I'm not sure we'd ever
  considered the possibility of code being removed. :-D
- This adds a `--prune-files-list` switch and updates the Tapioca GitHub
  Actions workflow to use it. Any changes to the `sorbet/files.yaml`
  file will be committed as part of the scheduled Tapioca update job.

Co-authored-by: Sam Ford <1584702+samford@users.noreply.github.com>
Co-authored-by: Dustin Rodrigues <dust.rod@gmail.com>

It blocks uploading to GitHub Releases where Bintray credentials are not needed.
Also those checks are already performed in `bintray.rb`.

Co-authored-by: Mike McQuaid <mike@mikemcquaid.com>

This allows reducing the volume of `brew update` output by only
outputting the changes to formulae that you have installed.

Also add `--commit` to a create commit without opening a pull request

Do the usual "disable deprecations" and "uncomment pending deprecations"
dance and delete/deprecate/disable relevant/related code.

Co-authored-by: Sam Ford <1584702+samford@users.noreply.github.com>
Co-authored-by: Thierry Moisan <thierry.moisan@gmail.com>
Co-authored-by: Dawid Dziurla <dawidd0811@gmail.com>
Co-authored-by: Maxim Belkin <maxim.belkin@gmail.com>
Co-authored-by: Issy Long <me@issyl0.co.uk>
Co-authored-by: Mike McQuaid <mike@mikemcquaid.com>
Co-authored-by: Seeker <meaningseeking@protonmail.com>

This PR adds a new `brew typecheck` developer command which checks for
typechecking errors in the current code with Sorbet.

- Add `--stackprof` to allow using stackprof
- Use the latest version of `ruby-prof`
- Automatically open the generated HTML output