fix: upgrade aws-sdk from 2.868.0 to 2.870.0

Snyk has created this PR to upgrade aws-sdk from 2.868.0 to 2.870.0.

See this package in npm:
https://www.npmjs.com/package/aws-sdk

See this project in Snyk:
https://app.snyk.io/org/gregoryrabbit/project/7c9c35e6-43db-49e5-b5a4-6788fed2b957?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -36,7 +36,7 @@
     "@kubernetes/client-node": "^0.14.2",
     "@snyk/dep-graph": "^1.28.0",
     "async": "^3.2.0",
-    "aws-sdk": "^2.868.0",
+    "aws-sdk": "^2.870.0",
     "bunyan": "^1.8.15",
     "child-process-promise": "^2.2.1",
     "fs-extra": "^9.1.0",