Homebrew

<!-- Release notes generated using configuration in .github/release.yml at master -->

What's Changed

• Remove misleading upstream.rbi, enable types in on_system by @dduugg in https://github.com/Homebrew/brew/pull/15019
• Use ActiveSupport Hash#assert_valid_keys instead of refinement by @dduugg in https://github.com/Homebrew/brew/pull/15018
• Add include_count parameter to pluralize util by @dtrodrigues in https://github.com/Homebrew/brew/pull/15020
• analytics: improve InfluxDB cardinality by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/15021

Full Changelog: https://github.com/Homebrew/brew/compare/4.0.7...4.0.8