Bump async from 2.6.3 to 2.6.4 (#8)

Bumps [async](https://github.com/caolan/async) from 2.6.3 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@v2.6.3...v2.6.4)

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

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

yarn.lock

@@ -3093,11 +3093,11 @@ __metadata:
   linkType: hard
 
 "async@npm:^2.6.1":
-  version: 2.6.3
-  resolution: "async@npm:2.6.3"
+  version: 2.6.4
+  resolution: "async@npm:2.6.4"
   dependencies:
     lodash: ^4.17.14
-  checksum: 5e5561ff8fca807e88738533d620488ac03a5c43fce6c937451f7e35f943d33ad06c24af3f681a48cca3d2b0002b3118faff0a128dc89438a9bf0226f712c499
+  checksum: a52083fb32e1ebe1d63e5c5624038bb30be68ff07a6c8d7dfe35e47c93fc144bd8652cbec869e0ac07d57dde387aa5f1386be3559cdee799cb1f789678d88e19
   languageName: node
   linkType: hard