[BUG] flutter_ume_kit_dio_plus 解析请求头出错

Steps to Reproduce 复现步骤

这里第 236 行的代码有漏洞，如果 headers 里面的参数值为数字等非 String 的话则会出错。

flutter_ume/kits/flutter_ume_kit_dio/lib/src/widgets/pluggable_state.dart

Lines 233 to 238 in e66342d

    
           final Map<String, List<String>> map = _request.headers.map( 
        
             (key, value) => MapEntry( 
        
               key, 
        
               value is Iterable ? value.map((v) => v.toString()).toList() : [value], 
        
             ), 
        
           );

【修改方法】为将 value 转为 String 类型：
value is Iterable ? value.map((v) => v.toString()).toList() : [value.toString()],

dio添加添加参数{"key":1}
正常进行网络请求
打开 ume 的 DioInspector 找到刚刚的网络请求，并点击【详情】，页面报错
查看日志提示：type 'int' is not a subtype of type 'String'

Expected results 期望结果:
预期正常展示网络请求详情
Actual results 实际结果:
实际上请求出错：

Error log 错误日志

The following _TypeError was thrown building ValueListenableBuilder<bool>(dirty, state: _ValueListenableBuilderState<bool>#08b6e):
type 'int' is not a subtype of type 'String'

The relevant error-causing widget was: 
  DioInspector DioInspector:file:///Users/username/dev/workspace/work/project_name/lib/main.dart:30:7
When the exception was thrown, this was the stack: 
#0      _ResponseCardState._requestHeadersBuilder.<anonymous closure> (package:flutter_ume_kit_dio_plus/src/widgets/pluggable_state.dart:232:72)<--这里出错
#1      MapBase.map (dart:collection/maps.dart:82:28)
#2      _ResponseCardState._requestHeadersBuilder (package:flutter_ume_kit_dio_plus/src/widgets/pluggable_state.dart:229:60)
#3      _ResponseCardState._detailedContent.<anonymous closure> (package:flutter_ume_kit_dio_plus/src/widgets/pluggable_state.dart:353:26)
#4      _ValueListenableBuilderState.build (package:flutter/src/widgets/value_listenable_builder.dart:186:26)
#5      StatefulElement.build (package:flutter/src/widgets/framework.dart:5198:27)
#6      ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5086:15)
#7      StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#8      Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#9      BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2780:19)
#10     WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:903:21)
#11     RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:358:5)
#12     SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1284:15)
#13     SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1214:9)
#14     SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:1072:5)
#15     _invoke (dart:ui/hooks.dart:142:13)
#16     PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:359:5)
#17     _drawFrame (dart:ui/hooks.dart:112:31)

Environmental info 环境信息

Flutter doctor

Doctor summary (to see all details, run flutter doctor -v):
[!] Flutter (Channel stable, 3.10.5, on macOS 13.4.1 22F770820d darwin-arm64, locale en-CN)

UME and kits version UME 及插件包版本

  # ume调试工具
  flutter_ume: ^1.1.2
  flutter_ume_kit_ui: ^1.1.0 # 如果报错，可以修改widget_detail_inspector.dart第三行为 import 'package:flutter/material.dart' hide SearchBar;
  flutter_ume_kit_device: ^1.0.0
  flutter_ume_kit_console: ^1.0.0
  flutter_ume_kit_dio_plus: ^2.0.0

	final Map<String, List<String>> map = _request.headers.map(
	(key, value) => MapEntry(
	key,
	value is Iterable ? value.map((v) => v.toString()).toList() : [value],
	),
	);