chore: Bump aws-sdk from 2.1416.0 to 2.1421.0 (#778)

Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.1416.0 to 2.1421.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Commits](https://github.com/aws/aws-sdk-js/compare/v2.1416.0...v2.1421.0)

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

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package.json

@@ -26,7 +26,7 @@
   "homepage": "https://github.com/aws-actions/configure-aws-credentials#readme",
   "dependencies": {
     "@actions/core": "^1.10.0",
-    "aws-sdk": "^2.1416.0",
+    "aws-sdk": "^2.1421.0",
     "axios": "^1.4.0",
     "https-proxy-agent": "^5.0.1"
   },