Merge pull request #2283 from searxng/revert-2279-dependabot/pip/master/redis-4.5.3

Revert "Bump redis from 4.5.1 to 4.5.3"

requirements.txt

@@ -12,7 +12,7 @@ Brotli==1.0.9
 uvloop==0.17.0
 httpx-socks[asyncio]==0.7.2
 setproctitle==1.3.2
-redis==4.5.3
+redis==4.5.1
 markdown-it-py==2.2.0
 typing_extensions==4.5.0
 fasttext-predict==0.9.2.1