chore: Bump aws-sdk from 2.899.0 to 2.904.0 (#208)

Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.899.0 to 2.904.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Changelog](https://github.com/aws/aws-sdk-js/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-js@v2.899.0...v2.904.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

package.json

@@ -26,7 +26,7 @@
   "homepage": "https://github.com/aws-actions/configure-aws-credentials#readme",
   "dependencies": {
     "@actions/core": "^1.2.7",
-    "aws-sdk": "^2.899.0"
+    "aws-sdk": "^2.904.0"
   },
   "devDependencies": {
     "@zeit/ncc": "^0.22.3",