[BUG]FastJsonHttpMessageConverter将接受信息格式化为JSONObject时出错

### 问题描述
*简要描述您碰到的问题。*
FastJsonHttpMessageConverter将接受信息格式化为JSONObject时出错

### 环境信息
*请填写以下信息：*

- OS信息： win11
- JDK信息： jdk1.8
- 版本信息：Fastjson2 2.0.28

### 重现步骤
*如何操作可以重现该问题：*

1. springMvc配置：
```java
//final WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter webMvcAutoConfigurationAdapter;
List> messageConverters = adapter.getMessageConverters();
messageConverters.removeIf(x -> x instanceof FastJsonHttpMessageConverter);
FastJsonHttpMessageConverter jsonConverter = new FastJsonHttpMessageConverter();
FastJsonConfig config = new FastJsonConfig();
config.setDateFormat("yyyy-MM-dd HH:mm:ss");
config.setReaderFeatures(JSONReader.Feature.FieldBased, JSONReader.Feature.SupportArrayToBean);
config.setWriterFeatures(JSONWriter.Feature.WriteMapNullValue, JSONWriter.Feature.PrettyFormat);
List mediaTypes=new ArrayList<>();
mediaTypes.add(MediaType.APPLICATION_JSON);
mediaTypes.add(MediaType.APPLICATION_FORM_URLENCODED);
jsonConverter.setSupportedMediaTypes(mediaTypes);
jsonConverter.setDefaultCharset(StandardCharsets.UTF_8);
jsonConverter.canRead(JSONObject.class,MediaType.APPLICATION_FORM_URLENCODED);
jsonConverter.setFastJsonConfig(config);
messageConverters.add(jsonConverter);
```
controller:
```
@RestController
@RequestMapping("account")
@RequiredArgsConstructor
public class AccountController {

final AccountService accountService;

@RequestMapping("getList")
public Map getList(JSONObject paramMap){
//省略业务代码
return new HashMap<>(String, Object);
}
```
2. 输入 `...` 数据
(1)：httpheader:
```
application/x-www-form-urlencoded
```
(2):数据：{abc={"studentNo":"00000"}}
3. 出现 `...` 错误
```
java.lang.IllegalStateException: argument type mismatch
Controller [***.controller.AccountController]
Method [public java.util.Map ***.controller.AccountController.getList(com.alibaba.fastjson2.JSONObject)] with argument values:
[0] [type=java.util.LinkedHashMap] [value={abc={\"studentNo\":\"00000\"}}]
```

### 期待的正确结果
*对您期望发生的结果进行清晰简洁的描述。*
{abc:{"studentNo":"00000"}}

### 相关日志输出
*请复制并粘贴任何相关的日志输出。*
```
java.lang.IllegalStateException: argument type mismatch
Controller [***.controller.AccountController]
Method [public java.util.Map ***.controller.AccountController.getList(com.alibaba.fastjson2.JSONObject)] with argument values:
[0] [type=java.util.LinkedHashMap] [value={abc={\"studentNo\":\"00000\"}}]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:210)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1072)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:965)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:555)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:209)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:91)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:389)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.IllegalArgumentException: argument type mismatch
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
... 53 more

argument type mismatch
Controller [***.controller.AccountController]
Method [public java.util.Map ***.controller.AccountController.getList(com.alibaba.fastjson2.JSONObject)] with argument values:
[0] [type=java.util.LinkedHashMap] [value={abc={\"studentNo\":\"00000\"}}]
```
#### 附加信息
*如果你还有其他需要提供的信息，可以在这里填写（可以提供截图、视频等）。*

Start at the FastJsonHttpMessageConverter configuration and the AccountController.getList(JSONObject paramMap) entry point, then reproduce the request using application/x-www-form-urlencoded with the supplied data and Fastjson2 2.0.28. Trace why Spring passes a LinkedHashMap instead of JSONObject; done means the request reaches the controller without argument type mismatch and preserves the expected object content.

Written by the indexing model from the issue text.