This updates the type signature for `#scan_repositories` to address a
runtime type error and to reflect the actual return type.
The logic in `#scan_repositories` to check for unsupported
repositories leads to a type error, as `#ofail` has a void return
type. To resolve this, I moved the repository verification code into
`#run` (after `repos` is defined but before it's used) and used
`#odie`, so the command will exit early with an error.
While I was at it, I updated the type for the `repos` parameter to
not be `nilable`, as it shouldn't be `nil` based on how we're
handling `repos` in `#run`.
CSV generation is optional, so this moves the related `require` into
the method where `CSV` is used (following a pattern we've used for
other `require` calls throughout `brew`).
This resolves `unitialized constant` errors in `brew contributions`
(`Tap`, `GitHub`) and `Utils::GitHub` (`Utils::Curl`).
This also preemptively adds some requires to `Utils::GitHub` and
`GitHub::API`, to avoid similar errors.
The `Homebrew::CLI::NamedArgs` class often returns frozen arrays so this one cannot
be easily modified in-place here. We just overwrite it instead.
I also updated the `brew reinstall` command logic to match for consistency.
```console
$ brew upgrade gh --verbose --debug
...
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FromAPILoader): loading gh
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FromAPILoader): loading gh
Error: can't modify frozen Array: [#<Formula gh (stable) /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/g/gh.rb>]
/usr/local/Homebrew/Library/Homebrew/cmd/upgrade.rb:139:in `delete'
/usr/local/Homebrew/Library/Homebrew/cmd/upgrade.rb:139:in `run'
/usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/3.3.0/gems/sorbet-runtime-0.5.11481/lib/types/private/methods/call_validation.rb:270:in `bind_call'
/usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/3.3.0/gems/sorbet-runtime-0.5.11481/lib/types/private/methods/call_validation.rb:270:in `validate_call'
/usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/3.3.0/gems/sorbet-runtime-0.5.11481/lib/types/private/methods/_methods.rb:277:in `block in _on_method_added'
/usr/local/Homebrew/Library/Homebrew/brew.rb:95:in `<main>'
```
Source builds that use Git checkouts with submodules can choke when the
process UID does not match its EUID.
We can fix this by using the `reset_uid` option added in #17782.
