chore(deps-dev): bump typescript in /examples/custom-receiver

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.3.3 to 5.7.3.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Changelog](https://github.com/microsoft/TypeScript/blob/main/azure-pipelines.release.yml)
- [Commits](microsoft/TypeScript@v5.3.3...v5.7.3)

---
updated-dependencies:
- dependency-name: typescript
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

examples/custom-receiver/package.json

@@ -23,6 +23,6 @@
     "@types/koa__router": "^12",
     "@types/node": "^18",
     "ts-node": "^10",
-    "typescript": "5.3.3"
+    "typescript": "5.7.3"
   }
 }