Merge branch 'renovate/redis-7-x' into 'master'

Update redis Docker tag to v7

See merge request repos/website!65

docker/dev/docker-compose.yml

@@ -19,7 +19,7 @@ services:
       - 127.0.0.1:8000:8000
 
   redis:
-    image: redis:6-alpine
+    image: redis:7-alpine
 
   db:
     image: postgres:14-alpine