Update supported WhatsApp Web version to v2.2146.9 (#969)

Co-authored-by: pedroslopez <pedroslopez@users.noreply.github.com>
Co-authored-by: Pedro S. Lopez <pslamoros@hotmail.com>

README.md

@@ -1,4 +1,4 @@
-[![npm](https://img.shields.io/npm/v/whatsapp-web.js.svg)](https://www.npmjs.com/package/whatsapp-web.js) [![Depfu](https://badges.depfu.com/badges/4a65a0de96ece65fdf39e294e0c8dcba/overview.svg)](https://depfu.com/github/pedroslopez/whatsapp-web.js?project_id=9765) ![WhatsApp_Web 2.2142.12](https://img.shields.io/badge/WhatsApp_Web-2.2142.12-brightgreen.svg) [![Discord Chat](https://img.shields.io/discord/698610475432411196.svg?logo=discord)](https://discord.gg/H7DqQs4)  
+[![npm](https://img.shields.io/npm/v/whatsapp-web.js.svg)](https://www.npmjs.com/package/whatsapp-web.js) [![Depfu](https://badges.depfu.com/badges/4a65a0de96ece65fdf39e294e0c8dcba/overview.svg)](https://depfu.com/github/pedroslopez/whatsapp-web.js?project_id=9765) ![WhatsApp_Web 2.2146.9](https://img.shields.io/badge/WhatsApp_Web-2.2146.9-brightgreen.svg) [![Discord Chat](https://img.shields.io/discord/698610475432411196.svg?logo=discord)](https://discord.gg/H7DqQs4)  
 
 # whatsapp-web.js
 A WhatsApp API client that connects through the WhatsApp Web browser app

tools/version-checker/.version

@@ -1 +1 @@
-2.2142.12
+2.2146.9