Merge pull request #7 from leonh/dependabot/pip/redis-4.5.3

Bump redis from 3.5.3 to 4.5.3

Author: leonh

requirements.txt

@@ -2,7 +2,7 @@ uvicorn==0.12.1
 websockets==9.1
 fastapi==0.65.2
 aioredis==1.3.1
-redis==3.5.3
+redis==4.5.3
 uvloop==0.15.2
 jinja2==2.11.3
 aiofiles==0.6.0