feat(whatsapp): implement fetchLatestWaWebVersion utility and update version fetching logic

- Added a new utility function `fetchLatestWaWebVersion` to retrieve the latest WhatsApp Web version.
- Updated the Baileys service and router to utilize the new function instead of the deprecated `fetchLatestBaileysVersion`, ensuring accurate version information is fetched for WhatsApp integration.
- This change enhances the reliability of version management in the application.

src/utils/fetchLatestWaWebVersion.ts

@@ -0,0 +1,37 @@
+import axios, { AxiosRequestConfig } from 'axios';
+import { fetchLatestBaileysVersion, WAVersion } from 'baileys';
+
+export const fetchLatestWaWebVersion = async (options: AxiosRequestConfig<{}>) => {
+  try {
+    const { data } = await axios.get('https://web.whatsapp.com/sw.js', {
+      ...options,
+      responseType: 'json',
+    });
+
+    const regex = /\\?"client_revision\\?":\s*(\d+)/;
+    const match = data.match(regex);
+
+    if (!match?.[1]) {
+      return {
+        version: (await fetchLatestBaileysVersion()).version as WAVersion,
+        isLatest: false,
+        error: {
+          message: 'Could not find client revision in the fetched content',
+        },
+      };
+    }
+
+    const clientRevision = match[1];
+
+    return {
+      version: [2, 3000, +clientRevision] as WAVersion,
+      isLatest: true,
+    };
+  } catch (error) {
+    return {
+      version: (await fetchLatestBaileysVersion()).version as WAVersion,
+      isLatest: false,
+      error,
+    };
+  }
+};