Merge pull request #5256 from learningequality/dependabot/pip/redis-6.3.0

chore(deps): bump redis from 6.2.0 to 6.3.0

Author: bjester

requirements.txt

@@ -220,7 +220,7 @@ pytz==2022.1
     #   django
     #   django-postmark
     #   google-api-core
-redis==6.2.0
+redis==6.4.0
     # via
     #   -r requirements.in
     #   django-redis