Update dependency @types/node to v20

Author: renovate[bot]

Diff for: package.json

@@ -53,7 +53,7 @@
     "@tsconfig/recommended": "1.0.3",
     "@types/graphlib": "^2.1.8",
     "@types/jest": "29.5.7",
-    "@types/node": "^18.17.5",
+    "@types/node": "^20.0.0",
     "@typescript-eslint/eslint-plugin": "6.9.1",
     "@typescript-eslint/parser": "6.9.1",
     "eslint": "8.52.0",