Bump aws-sdk from 2.1642.0 to 2.1644.0

Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.1642.0 to 2.1644.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Commits](aws/aws-sdk-js@v2.1642.0...v2.1644.0)

---
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 "2.1642.0"
-  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.1642.0.tgz#d85e369258a4ba8fb6241bb8af3bd6c893ed51ee"
-  integrity sha512-xTqRcLbb7F3GadFQN1+m25nP1twA2Lmlmhpt5gbYb3VCR91lb+c9EnsEr7U60zLv4AR2ip/GkDtSpKS/EzLOzA==
+  version "2.1644.0"
+  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.1644.0.tgz#998b5a7fc059b13f760e19013948cc8b2317165c"
+  integrity sha512-9DkVmQWrL766uxeag6wLbXNahwodrIvxZlh1JZ6bzMoNXLCx38GhQfdtLhCoqK7+k0c5QIzHhjPqyqwPM4ohJw==
   dependencies:
     buffer "4.9.2"
     events "1.1.1"