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](https://github.com/caolan/async/compare/v2.6.3...v2.6.4)

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

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

package-lock.json

@@ -1214,9 +1214,9 @@
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@@ -1789,42 +1789,15 @@
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@@ -2247,12 +2220,6 @@
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@@ -3030,6 +2997,12 @@
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@@ -3222,6 +3195,12 @@
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@@ -6958,6 +6937,12 @@
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