actions: Create script to announce a new release via a Discord WebHooks

.github/workflows/scripts/releases/announce-release/.gitignore

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+node_modules/
+*.md

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

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+import { MessageEmbed, WebhookClient } from "discord.js";
+import * as github from '@actions/github';
+
+const assets = github.context.payload.release.assets;
+let windowsAssetLinks = "";
+let linuxAssetLinks = "";
+
+for (var i = 0; i < assets.length; i++) {
+  let asset = assets[i];
+  if (asset.name.includes("symbols")) {
+    continue;
+  }
+  if (asset.name.includes("windows")) {
+    windowsAssetLinks += `- [${asset.name}](${asset.browser_download_url})\n`
+  } else if (asset.name.includes("linux")) {
+    linuxAssetLinks += `- [${asset.name}](${asset.browser_download_url})\n`
+  }
+}
+
+// Publish Webhook
+const embed = new MessageEmbed()
+  .setColor('#FF8000')
+  .setTitle('New PCSX2 Nightly Build Available!')
+  .addFields(
+    { name: 'Version', value: github.context.payload.release.tag_name, inline: true },
+    { name: 'Release Link', value: `[Github Release](${github.context.payload.release.html_url})`, inline: true },
+    { name: 'Installation Steps', value: '[See Here](https://github.com/PCSX2/pcsx2/wiki/Nightly-Build-Usage-Guide)', inline: true }
+  );
+
+if (windowsAssetLinks != "") {
+  embed.addField('Windows Downloads', windowsAssetLinks, false);
+}
+if (linuxAssetLinks != "") {
+  embed.addField('Linux Downloads', linuxAssetLinks, false);
+}
+
+const webhookClient = new WebhookClient({ url: process.env.DISCORD_BUILD_WEBHOOK });
+await webhookClient.send({
+  embeds: [embed],
+});