update 优化 docker 配置

docker/.env

@@ -1,2 +0,0 @@
-REGISTER=ruoyi
-TAG=2.4.0

docker/docker-compose.yml

@@ -78,7 +78,7 @@ services:
         ipv4_address: 172.30.0.48
 
   ruoyi-admin:
-    image: "${REGISTER}/ruoyi-admin:${TAG}"
+    image: "ruoyi/ruoyi-admin:2.4.0"
     environment:
       - TZ=Asia/Shanghai
     privileged: true