fix: upgrade aws-sdk from 2.1472.0 to 2.1473.0

Snyk has created this PR to upgrade aws-sdk from 2.1472.0 to 2.1473.0.

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

See this project in Snyk:
https://app.us.snyk.io/org/container-integration-qa-a7XgGqp53yV2w5zayczFHM/project/68ea9aca-d217-4c8f-8571-e66103670450?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -39,7 +39,7 @@
     "@kubernetes/client-node": "0.17.0",
     "@snyk/dep-graph": "^2.8.0",
     "async": "^3.2.4",
-    "aws-sdk": "^2.1472.0",
+    "aws-sdk": "^2.1473.0",
     "bunyan": "^1.8.15",
     "child-process-promise": "^2.2.1",
     "fastq": "^1.15.0",