chore: Update Docker Compose configuration for MOCKBIN. (#160)

- Change `MOCKBIN_REDIS` environment variable to use `redis://` protocol
- Add `MOCKBIN_QUIET` environment variable and set it to `false`
- Add `MOCKBIN_PORT` environment variable and set it to `8080`

Co-authored-by: Jack Kavanagh <jackkav@gmail.com>

docker-compose.yml

@@ -2,7 +2,9 @@ services:
   app:
     build: .
     environment:
-      MOCKBIN_REDIS: "//redis:6379"
+      MOCKBIN_REDIS: "redis://redis:6379"
+      MOCKBIN_QUIET: "false"
+      MOCKBIN_PORT: "8080"
       MOCKBIN_REDIS_EXPIRE_SECONDS: 1000000000
     links:
       - redis