refactor(BaseRpcComponentHandler): 将CacheComponent的set访问器改为private

修改访问修饰符以提高封装性，防止外部直接修改组件代理对象

Author: AlianBlank

GameFrameX.Core/BaseHandler/RPC/BaseRpcComponentHandler.cs

@@ -61,7 +61,7 @@ namespace GameFrameX.Core.BaseHandler.RPC;
     /// <summary>
     /// 缓存组件代理对象
     /// </summary>
-    public IComponentAgent CacheComponent { get; protected set; }
+    public IComponentAgent CacheComponent { get; private set; }
 
     /// <summary>
     /// 初始化