CI: Update the node version for announce-release

.github/workflows/release_cut_new.yml

@@ -204,7 +204,7 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
-          node-version: 16
+          node-version: 20
 
       - name: Announce Release
         env:

.github/workflows/scripts/releases/announce-release/index.js

@@ -2,7 +2,6 @@ import { MessageEmbed, WebhookClient } from "discord.js";
 import { Octokit } from "@octokit/rest";
 import { throttling } from "@octokit/plugin-throttling";
 import { retry } from "@octokit/plugin-retry";
-import { fetch } from "node-fetch";
 
 let owner = process.env.OWNER;
 let repo = process.env.REPO;
@@ -18,9 +17,6 @@ const octokit = new Octokit({
     warn: console.warn,
     error: console.error
   },
-  request: {
-    fetch: fetch,
-  },
   throttle: {
     onRateLimit: (retryAfter, options) => {
       octokit.log.warn(