chore: bump engine.io-client dependency

Diff: socketio/engine.io-client@5.0.1...5.1.0

Author: darrachequesne

package-lock.json

@@ -31,7 +31,7 @@
     "backo2": "~1.0.2",
     "component-emitter": "~1.3.0",
     "debug": "~4.3.1",
-    "engine.io-client": "~5.0.0",
+    "engine.io-client": "~5.1.1",
     "parseuri": "0.0.6",
     "socket.io-parser": "~4.0.4"
   },