chore(deps): bump config from 4.2.0 to 4.4.1 in /examples/using-domains (#477)

Bumps [config](https://github.com/node-config/node-config) from 4.2.0 to 4.4.1.
- [Release notes](https://github.com/node-config/node-config/releases)
- [Changelog](https://github.com/node-config/node-config/blob/master/History.md)
- [Commits](node-config/node-config@v4.2.0...v4.4.1)

---
updated-dependencies:
- dependency-name: config
  dependency-version: 4.4.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

examples/using-domains/package-lock.json

@@ -9,7 +9,7 @@
   "author": "dwnz",
   "license": "MIT",
   "dependencies": {
-    "config": "^4.2.0",
+    "config": "^4.4.1",
     "raygun": "file:../.."
   }
 }