chore: Bump @smithy/node-http-handler from 2.1.5 to 2.1.6 (#872)

Bumps [@smithy/node-http-handler](https://github.com/awslabs/smithy-typescript/tree/HEAD/packages/node-http-handler) from 2.1.5 to 2.1.6.
- [Release notes](https://github.com/awslabs/smithy-typescript/releases)
- [Changelog](https://github.com/awslabs/smithy-typescript/blob/main/packages/node-http-handler/CHANGELOG.md)
- [Commits](https://github.com/awslabs/smithy-typescript/commits/@smithy/node-http-handler@2.1.6/packages/node-http-handler)

---
updated-dependencies:
- dependency-name: "@smithy/node-http-handler"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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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

@@ -41,7 +41,7 @@
   "dependencies": {
     "@actions/core": "^1.10.1",
     "@aws-sdk/client-sts": "^3",
-    "@smithy/node-http-handler": "^2.1.5",
+    "@smithy/node-http-handler": "^2.1.6",
     "https-proxy-agent": "^5.0.0"
   },
   "keywords": [