Bump aws-sdk from 2.1476.0 to 2.1478.0 (#1603)

Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.1476.0 to 2.1478.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Commits](aws/aws-sdk-js@v2.1476.0...v2.1478.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

yarn.lock

@@ -197,9 +197,9 @@ available-typed-arrays@^1.0.5:
   integrity sha512-DMD0KiN46eipeziST1LPP/STfDU0sufISXmjSgvVsoU2tqxctQeASejWcfNtxYKqETM1UxQ8sp2OrSBWpHY6sw==
 
 aws-sdk@^2.458.0:
-  version "2.1476.0"
-  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.1476.0.tgz#c0c3861f3287fc05d8e9fc7ebb3e0fb713f979a7"
-  integrity sha512-JxLdsSUpdPISLSyIUHGDLggR7i0VQRWAbtv4BO0Okv2vlm7uuLAiEHge/ZmX7DObzAbKiG8dn1Dfc2v0pOwBuw==
+  version "2.1478.0"
+  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.1478.0.tgz#30edc3a34fb0c40f30e5512e5e02c630ef849022"
+  integrity sha512-F+Ud9FxMD4rwvGbEXn7qc25Q19N4p+9klRjiH1llFLYssPw6TRtY464Cry/jG4OzuYkE/DsnhcwVFEJjGvMmuQ==
   dependencies:
     buffer "4.9.2"
     events "1.1.1"