update redis hostname to avoid docker network conflicts

docker-compose.yml

@@ -7,5 +7,6 @@ services:
     environment:
       - SECRET=${SECRET}
   redis:
+    hostname: sus-redis
     image: redis:7
     volumes: [ "./redis:/data" ]

main.go

@@ -31,7 +31,7 @@ import (
 )
 
 var client = redis.NewClient(&redis.Options{
-	Addr:     "redis:6379",
+	Addr:     "sus-redis:6379",
 	Password: "",
 	DB:       0,
 })