Bump 3pp/async from 92c5599 to 4b5ff06

Bumps [3pp/async](https://github.com/eerimoq/async) from `92c5599` to `4b5ff06`.
- [Release notes](https://github.com/eerimoq/async/releases)
- [Commits](eerimoq/async@92c5599...4b5ff06)

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