build(extension): 更新 core 依赖版本

- 将 "six-shop/core" 依赖版本从 ">=0.5.9 <1.0" 升级到 ">=0.6 <1.0"
- 此更新可能包含 bug 修复、性能优化或其他功能改进

composer.json

@@ -11,7 +11,7 @@
   ],
   "require": {
     "php": ">=8.3",
-    "six-shop/core": ">=0.5.9 <1.0"
+    "six-shop/core": ">=0.6 <1.0"
   },
   "authors": [
     {