IApiRequestMetadataProvider not respected and still add application/*+json content type.

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Describe the bug

IApiResponseMetadataProvider respect the provided content type in SetContentTypes.
IApiRequestMetadataProvider always add application/*+json content event if it's not provided in SetContentTypes.

### Expected Behavior

application/*+json should not be added if it's not provided in IApiRequestMetadataProvider SetContentTypes

### Steps To Reproduce

Create an atttribute implementing IApiRequestMetadataProvider like this
`[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public class TestConsumesAttribute : Attribute, IApiRequestMetadataProvider
{
private readonly MediaTypeCollection _contentTypes;

public TestConsumesAttribute(string contentType)
{
_contentTypes = new MediaTypeCollection { contentType };
}

void IApiRequestMetadataProvider.SetContentTypes(MediaTypeCollection contentTypes)
{
contentTypes.Clear();
foreach (var contentType in _contentTypes)
{
contentTypes.Add(contentType);
}
}
}`

Add swagger gen and put the attibute on a controller with "application/json" media type and an input model.
You can see that application/*+json is always added.

Using the consume attribute application/*+json will not be added.
Be the interface itself should be enough to set the mediatype values.

### Exceptions (if any)

_No response_

### .NET Version

8

### Anything else?

_No response_