Add health check dependencies for Postiz service in docker-compose.yml

- Updated the Postiz service configuration to include health check dependencies for PostgreSQL and Redis, ensuring that these services are healthy before Postiz starts.
- This enhancement improves service reliability and startup order in the Docker environment.

docker-compose.yml

@@ -609,6 +609,11 @@ services:
     volumes:
       - postiz-config:/config
       - postiz-uploads:/uploads
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
 
   comfyui:
     image: yanwk/comfyui-boot:cu124-slim