Bumps [raven-js](https://github.com/getsentry/raven-js) from 3.24.2 to 3.27.0.
- [Release notes](https://github.com/getsentry/raven-js/releases)
- [Changelog](https://github.com/getsentry/sentry-javascript/blob/master/CHANGELOG.md)
- [Commits](https://github.com/getsentry/raven-js/compare/3.24.2...raven-js@3.27.0)
Signed-off-by: dependabot[bot] <support@dependabot.com>