ci:修正 Docker 构像路径变量引用

- 在 llmx-core-service 和 llmx-impl-bailian 服务中
-将 ${${DOCKER_REGISTRY_URL}}/llmx-core-service 和 ${${DOCKER_REGISTRY_URL}}/llmx-impl-bailian
- 修改为 ${DOCKER_REGISTRY_URL}/llmx-core-service 和 ${DOCKER_REGISTRY_URL}/llmx-impl-bailian
-以解决变量引用嵌套导致的路径错误问题

docker/docker-compose.test.yml

@@ -14,7 +14,7 @@ services:
     volumes:
       - llmx-nacos-volume:/nacos/data
   llmx-core-service:
-    image: ${${DOCKER_REGISTRY_URL}}/llmx-core-service
+    image: ${DOCKER_REGISTRY_URL}/llmx-core-service
     container_name: llmx-core-service
     ports:
       - "9002:9002"
@@ -26,7 +26,7 @@ services:
       - llmx-core-service-volume:/app/volume
     restart: always
   llmx-impl-bailian:
-    image: ${${DOCKER_REGISTRY_URL}}/llmx-impl-bailian
+    image: ${DOCKER_REGISTRY_URL}/llmx-impl-bailian
     container_name: llmx-impl-bailian
     ports:
       - "9003:9003"