chore(deps): replace dependency @tsconfig/node18 with @tsconfig/node20

Author: renovate[bot]

package.json

@@ -60,7 +60,7 @@
     "@arethetypeswrong/cli": "^0.18.0",
     "@eggjs/oxlint-config": "^1.0.0",
     "@eggjs/tsconfig": "^2.0.0",
-    "@tsconfig/node18": "^18.2.1",
+    "@tsconfig/node20": "^20.1.0",
     "@tsconfig/strictest": "^2.0.2",
     "@types/busboy": "^1.5.0",
     "@types/mime-types": "^2.1.1",