Update async requirement from ^2.6.1 to ^3.0.0
Update async requirement from ^2.6.1 to ^3.0.0

Updates the requirements on [async](https://github.com/caolan/async) to permit the latest version.
- [Release notes](https://github.com/caolan/async/releases)
- [Changelog](https://github.com/caolan/async/blob/master/CHANGELOG.md)
- [Commits](https://github.com/caolan/async/compare/v2.6.1...v3.0.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
sagiegurari/multiple-redis,sagiegurari/multiple-redis