chore: bump engine.io to version 6.2.0

Release notes: https://github.com/socketio/engine.io/releases/tag/6.2.0
Diff: socketio/engine.io@6.1.3...6.2.0

Author: darrachequesne

package-lock.json

@@ -49,7 +49,7 @@
     "accepts": "~1.3.4",
     "base64id": "~2.0.0",
     "debug": "~4.3.2",
-    "engine.io": "~6.1.2",
+    "engine.io": "~6.2.0",
     "socket.io-adapter": "~2.4.0",
     "socket.io-parser": "~4.0.4"
   },