chore: upgrade leancloud-realtime

Author: leeyeh

package-lock.json

@@ -26,7 +26,7 @@
     "debug": "^3.1.0",
     "es6-promise": "4.2.3",
     "eventemitter3": "^2.0.3",
-    "leancloud-realtime": "^5.0.0-alpha.3",
+    "leancloud-realtime": "^5.0.0-beta.0",
     "leancloud-realtime-plugin-live-query": "^1.2.0",
     "localstorage-memory": "^1.0.1",
     "md5": "^2.0.0",