deps(renovate): update dependency @types/node to v20.6.0

Author: renovate[bot]

package-lock.json

@@ -43,7 +43,7 @@
     "@nlib/changelog": "0.3.1",
     "@nlib/eslint-config": "3.20.2",
     "@nlib/githooks": "0.2.0",
-    "@types/node": "20.5.9",
+    "@types/node": "20.6.0",
     "@typescript-eslint/eslint-plugin": "6.6.0",
     "@typescript-eslint/parser": "6.6.0",
     "ava": "5.3.1",