Fix CI error (#32)

Author: Chen Quan

docker-compose.yml

@@ -11,12 +11,12 @@ services:
     extra_hosts:
       - db.tuboshu.io:${DB_HOST}
       - redis.tuboshu.io:${DB_HOST}
-    redis:
-      image: redis
-      ports:
-        - 6379:6379
-      healthcheck:
-        test: ["CMD", "redis-cli","ping"]
-        interval: 20s
-        timeout: 1s
-        retries: 20
+  redis:
+    image: redis
+    ports:
+      - 6379:6379
+    healthcheck:
+      test: ["CMD", "redis-cli","ping"]
+      interval: 20s
+      timeout: 1s
+      retries: 20