Update redis Docker tag to v8.4 (#174)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

api-gateway/docker-compose.yml

@@ -3,7 +3,7 @@ version: '3.8'
 services:
 
   redis:
-    image: redis:8.2-alpine
+    image: redis:8.4-alpine
     container_name: redis
     ports:
       - "6379:6379"