Bump @types/node from 20.4.7 to 20.5.6

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 20.4.7 to 20.5.6.
- [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:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -17,7 +17,7 @@
     "@exercism/babel-preset-javascript": "^0.2.1",
     "@exercism/eslint-config-javascript": "^0.6.0",
     "@types/jest": "^29.5.4",
-    "@types/node": "^20.4.7",
+    "@types/node": "^20.5.6",
     "babel-jest": "^29.4.3",
     "chalk": "^4.1.2",
     "core-js": "~3.32.1",