Bump aws-sdk from 2.1603.0 to 2.1604.0

Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.1603.0 to 2.1604.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Commits](aws/aws-sdk-js@v2.1603.0...v2.1604.0)

---
updated-dependencies:
- dependency-name: aws-sdk
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

yarn.lock

@@ -189,9 +189,9 @@ available-typed-arrays@^1.0.5:
   integrity sha512-DMD0KiN46eipeziST1LPP/STfDU0sufISXmjSgvVsoU2tqxctQeASejWcfNtxYKqETM1UxQ8sp2OrSBWpHY6sw==
 
 aws-sdk@^2.458.0:
-  version "2.1603.0"
-  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.1603.0.tgz#81fd7e76502d46acf06c726a3dc547bdee9d3e5e"
-  integrity sha512-AB54LyTODyiTKdtUzE0LzhnPbumYH3KhDstje8i4KfeBSGCeszTgq89YfOVpSy5twfu9WpsJ2cHOxlrlXn9cpg==
+  version "2.1604.0"
+  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.1604.0.tgz#6b613adc6e06cc23e82e98d9f72d1df6d532ad3b"
+  integrity sha512-JSXNwKylbSZR2AL/jczOGJmPCZ/QpTys6SP89rhgy5LN677PJ6weQx5ShpPfGIcczGXjAeJDm8faWT53fYPCCw==
   dependencies:
     buffer "4.9.2"
     events "1.1.1"