Bump aws-sdk from 2.834.0 to 2.839.0

Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.834.0 to 2.839.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Changelog](https://github.com/aws/aws-sdk-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js/compare/v2.834.0...v2.839.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

yarn.lock

@@ -1617,9 +1617,9 @@ available-typed-arrays@^1.0.2:
     array-filter "^1.0.0"
 
 aws-sdk@^2.345.0:
-  version "2.834.0"
-  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.834.0.tgz#1d9f8ed7cf2ed885041142d67e29f45cbb8621b7"
-  integrity sha512-9WRULrn4qAmgXI+tEW/IG5s/6ixJGZqjPOrmJsFZQev7/WRkxAZmJAjcwd4Ifm/jsJbXx2FSwO76gOPEvu2LqA==
+  version "2.839.0"
+  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.839.0.tgz#74e9697e5dcb2d116032363ad80f5b705759fafb"
+  integrity sha512-CFgiZ8IUpI1Qqs0ECheGO592lvGG6dYp7SsMJ5Xegd+aBAn6dimPTSmrnkPHPyzFhMYtBx1kE6SxVkl9MKOcWg==
   dependencies:
     buffer "4.9.2"
     events "1.1.1"