Bumps [omniauth](https://github.com/omniauth/omniauth) from 1.8.1 to 1.9.0. - [Release notes](https://github.com/omniauth/omniauth/releases) - [Commits](https://github.com/omniauth/omniauth/compare/v1.8.1...v1.9.0) Signed-off-by: dependabot[bot] <support@dependabot.com>master