Bump async from 2.6.3 to 2.6.4

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
...

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

Author: dependabot[bot]

yarn.lock

@@ -7986,11 +7986,11 @@ __metadata:
   linkType: hard
 
 "async@npm:^2.6.2":
-  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: 06c917c74a55f9036ff79dedfc51dfc9c52c2dee2f80866b600495d2fd3037251dbcfde6592f23fc47398c44d844174004e0ee532f94c32a888bb89fd1cf0f25
+  checksum: 0ebb3273ef96513389520adc88e0d3c45e523d03653cc9b66f5c46f4239444294899bfd13d2b569e7dbfde7da2235c35cf5fd3ece9524f935d41bbe4efccdad0
   languageName: node
   linkType: hard