Bump bundler-audit from 0.6.0 to 0.6.1 (#9847)

Bumps [bundler-audit](https://github.com/postmodern/bundler-audit) from 0.6.0 to 0.6.1.
- [Release notes](https://github.com/postmodern/bundler-audit/releases)
- [Changelog](https://github.com/rubysec/bundler-audit/blob/master/ChangeLog.md)
- [Commits](https://github.com/postmodern/bundler-audit/compare/v0.6.0...v0.6.1

)

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