build(deps): bump activesupport in /Library/Homebrew

Bumps [activesupport](https://github.com/rails/rails) from 6.0.3.4 to 6.1.0.
- [Release notes](https://github.com/rails/rails/releases)
- [Changelog](https://github.com/rails/rails/blob/v6.1.0/activesupport/CHANGELOG.md)
- [Commits](https://github.com/rails/rails/compare/v6.0.3.4...v6.1.0

)

Signed-off-by: dependabot[bot] <support@github.com>