Bump async from 2.6.4 to 3.2.4

Bumps [async](https://github.com/caolan/async) from 2.6.4 to 3.2.4.
- [Release notes](https://github.com/caolan/async/releases)
- [Changelog](https://github.com/caolan/async/blob/master/CHANGELOG.md)
- [Commits](caolan/async@v2.6.4...v3.2.4)

---
updated-dependencies:
- dependency-name: async
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -102,7 +102,7 @@
     "zeromq": "^5.0.0"
   },
   "devDependencies": {
-    "async": "^2.0.1",
+    "async": "^3.2.4",
     "bower": "^1.8.8",
     "chai": "^3.4.1",
     "css-loader": "^0.28.11",

yarn.lock

@@ -740,12 +740,16 @@ async@^1.4.2, async@^1.5.0, async@^1.5.2:
   resolved "https://registry.npmjs.org/async/-/async-1.5.2.tgz"
   integrity "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=sha512-nSVgobk4rv61R9PUSDtYt7mPVB2olxNR5RWJcAsH676/ef11bUZwvu7+RGYrYauVdDPcO519v68wRhXQtxsV9w== sha512-nSVgobk4rv61R9PUSDtYt7mPVB2olxNR5RWJcAsH676/ef11bUZwvu7+RGYrYauVdDPcO519v68wRhXQtxsV9w=="
 
-async@^2.0.0, async@^2.0.1, async@^2.1.2, async@^2.5.0, async@^2.6.2, async@~2.6.0:
+async@^2.0.0, async@^2.1.2, async@^2.5.0, async@^2.6.2, async@~2.6.0:
   version "2.6.4"
   resolved "https://registry.npmjs.org/async/-/async-2.6.4.tgz"
   dependencies:
     lodash "^4.17.14"
 
+async@^3.2.4:
+  version "3.2.4"
+  resolved "https://registry.yarnpkg.com/async/-/async-3.2.4.tgz#2d22e00f8cddeb5fde5dd33522b56d1cf569a81c"
+
 async@~0.2.7, async@~0.2.9:
   version "0.2.10"
   resolved "https://registry.npmjs.org/async/-/async-0.2.10.tgz"