fix: upgrade async from 3.2.0 to 3.2.1

Snyk has created this PR to upgrade async from 3.2.0 to 3.2.1.

See this package in npm:
https://www.npmjs.com/package/async

See this project in Snyk:
https://app.snyk.io/org/runtime-3by/project/42e8f2af-1ff2-454d-8fb2-24fa4ae16b95?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -38,7 +38,7 @@
   "dependencies": {
     "@kubernetes/client-node": "^0.15.0",
     "@snyk/dep-graph": "^1.28.1",
-    "async": "^3.2.0",
+    "async": "^3.2.1",
     "aws-sdk": "^2.936.0",
     "bunyan": "^1.8.15",
     "child-process-promise": "^2.2.1",