build(deps-dev): bump is-async-function from 2.1.0 to 2.1.1

Bumps [is-async-function](https://github.com/inspect-js/is-async-function) from 2.1.0 to 2.1.1.
- [Changelog](https://github.com/inspect-js/is-async-function/blob/main/CHANGELOG.md)
- [Commits](inspect-js/is-async-function@v2.1.0...v2.1.1)

---
updated-dependencies:
- dependency-name: is-async-function
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]