chore(deps): update dependency redis to v6

Author: renovate[bot]

requirements.txt

@@ -49,7 +49,7 @@ pyuca==1.2
 qrcode==8.2
 rapidfuzz==3.13.0
 raven
-redis==5.3.0
+redis==6.2.0
 requests>=2.31.0 # not directly required, pinned by Snyk to avoid a vulnerability
 rollbar==1.3.0
 ruamel.yaml==0.18.11