fix(node): update node.js schedule (#14787)

data/node-js-schedule.json

@@ -101,5 +101,17 @@
     "maintenance": "2023-10-18",
     "end": "2025-04-30",
     "codename": ""
+  },
+  "v19": {
+    "start": "2022-10-18",
+    "maintenance": "2023-04-01",
+    "end": "2023-06-01"
+  },
+  "v20": {
+    "start": "2023-04-18",
+    "lts": "2023-10-24",
+    "maintenance": "2024-10-22",
+    "end": "2026-04-30",
+    "codename": ""
   }
 }