Bump @types/node from 20.5.9 to 20.6.0 in /swagger

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 20.5.9 to 20.6.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: "@types/node"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

swagger/package.json

@@ -7,7 +7,7 @@
     "@testing-library/react": "^12.1.5",
     "@testing-library/user-event": "^14.4.3",
     "@types/jest": "^29.5.4",
-    "@types/node": "^20.5.9",
+    "@types/node": "^20.6.0",
     "@types/react": "^17.0.0",
     "@types/react-dom": "^17.0.0",
     "react": "^17.0.2",