If you set `HOMEBREW_BUNDLE_NO_UPGRADE=1`, `brew bundle check` will
output:
```
Error: Parameter 'no_upgrade': Expected type T::Boolean, got type String with value "1"
Caller: /opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.4.0/gems/sorbet-runtime-0.5.12039/lib/types/private/methods/call_validation.rb:227
Definition: /opt/homebrew/Library/Homebrew/bundle/commands/check.rb:14 (Homebrew::Bundle::Commands::Check.run)
```
`brew bundle exec` behaves correctly only after doing `brew bundle install`.
Running `brew bundle check` can be slow, so let's add a `--check` flag
to `brew bundle exec` which will also run `brew bundle check` before
`brew bundle exec` to ensure that the `Brewfile` has been installed
before proceeding.
This flag allows you to specify formulae to upgrade, even if
`$HOMEBREW_BUNDLE_NO_UPGRADE` is set.
This is useful for upgrading specific formulae without upgrading all
formulae.
While we're here, let's add Sorbet signatures to the `Bundle` module
because I needed to add a new method there anyway.
It's both unexpected and undesirable for `brew bundle (exec|env|sh)` to
filter the environment and makes these tools less useful.
Not filtering the environment, though, causes issues with the
`brew bundle sh` shell. Fix this up and, while we're here, also improve
the formatting for both `zsh` and `bash` (the default) to use nicer and
more consistent prompts and colours.
To simplify this, consolidate some logic in a new
`Utils::Shell.shell_with_prompt` method and add tests for it and a
similar notice for `brew bundle sh`.
Finally, avoid printing out the notice when `HOMEBREW_NO_ENV_HINTS` is
set.
We've had requests for this in Homebrew/bundle a few times so let's
implement it both for there and for `brew edit`.
Tested on my machine with `cursor` and working as expected.
