Bumps [@sentry/browser](https://github.com/getsentry/sentry-javascript) from 6.4.0 to 6.4.1.
- [Release notes](https://github.com/getsentry/sentry-javascript/releases)
- [Changelog](https://github.com/getsentry/sentry-javascript/blob/master/CHANGELOG.md)
- [Commits](https://github.com/getsentry/sentry-javascript/compare/6.4.0...6.4.1)
Signed-off-by: dependabot[bot] <support@github.com>