Bumps [activesupport](https://github.com/rails/rails) from 4.2.1 to 6.0.0. - [Release notes](https://github.com/rails/rails/releases) - [Changelog](https://github.com/rails/rails/blob/v6.0.0/activesupport/CHANGELOG.md) - [Commits](rails/rails@v4.2.1...v6.0.0) Signed-off-by: dependabot[bot] <support@github.com>