Bump async and wd

Bumps [async](https://github.com/caolan/async) and [wd](https://github.com/admc/wd). These dependencies needed to be updated together.

Updates `async` from 2.6.0 to 2.6.4
- [Release notes](https://github.com/caolan/async/releases)
- [Changelog](https://github.com/caolan/async/blob/v2.6.4/CHANGELOG.md)
- [Commits](caolan/async@v2.6.0...v2.6.4)

Updates `wd` from 1.4.1 to 1.14.0
- [Release notes](https://github.com/admc/wd/releases)
- [Changelog](https://github.com/admc/wd/blob/master/doc/release-notes.md)
- [Commits](https://github.com/admc/wd/commits)

---
updated-dependencies:
- dependency-name: async
  dependency-type: indirect
- dependency-name: wd
  dependency-type: indirect
...

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Author: dependabot[bot]