[chore] Bump socket.io-adapter to version 0.5.0 (#2756)

Author: darrachequesne

package.json

@@ -28,7 +28,7 @@
     "engine.io": "1.8.0",
     "has-binary": "0.1.7",
     "object-assign": "4.1.0",
-    "socket.io-adapter": "0.4.0",
+    "socket.io-adapter": "0.5.0",
     "socket.io-client": "1.5.1",
     "socket.io-parser": "2.3.1"
   },