[fix] Deprecated Buffer usage in dependency (#585)

The `Buffer` constructor has been deprecated in favor of safer alternatives.
See https://nodejs.org/en/docs/guides/buffer-constructor-deprecation/

This was fixed in base64id@2.0.0

package.json

@@ -26,7 +26,7 @@
   "license": "MIT",
   "dependencies": {
     "accepts": "~1.3.4",
-    "base64id": "1.0.0",
+    "base64id": "2.0.0",
     "debug": "~3.1.0",
     "engine.io-parser": "~2.1.0",
     "ws": "~6.1.0",