Describe the bug

InternalItemContentInputImage.ImageUrl is not exposed as a property on ResponseContentPart

Steps to reproduce

1. Call `ResponseContentPart.CreateInputImagePart(Uri, ResponseImageDetailLevel)
2. Attempt to examine the image uri

Code snippets

ResponseContentPart imagePart = ResponseContentPart.CreateInputImagePart(
            new Uri("https://example.com/image.jpg"),
            ResponseImageDetailLevel.High);

OS

Windows, MacOS, Linux

.NET version

All

Library version

2.8.0