Update redis from 2.10.6 to 5.0.4

requirements.txt

@@ -3,7 +3,7 @@ Flask==0.12.4
 mongoengine==0.16.3
 flask-mongoengine==0.9.5
 thriftpy==0.3.9
-redis==2.10.6
+redis==5.0.4
 rq==0.12.0
 rq-dashboard==0.3.12
 rq-scheduler==0.8.3