[Bug]: Cannot load document with examples using Microsoft.OpenApi version 2.6.0

### Version 2.0.0 ### Describe the bug Cannot load document if using new [2.6.0 version from Microsoft.OpenApi](https://github.com/microsoft/OpenAPI.NET/releases/tag/v2.6.0) with ```csharp services.AddOpenApiExtensions(opt => { opt.AddServerUrls = false; opt.AddExamples = true; opt.SerializationContexts.Add(DateOnlyJsonSerializerContext.Default); opt.AddExample<DateOnly, DateOnlyExampleProvider>(); }); public sealed class DateOnlyExampleProvider : IExampleProvider<DateOnly> { public static DateOnly GenerateExample() => DateOnly.FromDateTime(DateTime.UtcNow); } [JsonSerializable(typeof(DateOnly))] [JsonSourceGenerationOptions( DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull, NumberHandling = JsonNumberHandling.Strict, PropertyNamingPolicy = JsonKnownNamingPolicy.CamelCase, WriteIndented = true)] public sealed partial class DateOnlyJsonSerializerContext : JsonSerializerContext; ``` ### Expected behaviour _No response_ ### Actual behaviour _No response_ ### Steps to reproduce _No response_ ### Exception(s) (if any) ```text `Method not found: 'System.Collections.Generic.IDictionary`2<System.String,Microsoft.OpenApi.OpenApiMediaType> Microsoft.OpenApi.IOpenApiResponse.get_Content() at MartinCostello.OpenApi.Transformers.AddExamplesTransformer.TryAddResponseExamples(OpenApiResponses responses, ApiDescription description, IList`1 examples)\r\n at MartinCostello.OpenApi.Transformers.AddExamplesTransformer.TryAddResponseExamples(OpenApiResponses responses, ApiDescription description, IList`1 examples)\r\n at MartinCostello.OpenApi.Transformers.AddExamplesTransformer.Process(OpenApiOperation operation, ApiDescription description)\r\n at MartinCostello.OpenApi.Transformers.AddExamplesTransformer.TransformAsync(OpenApiOperation operation, OpenApiOperationTransformerContext context, CancellationToken cancellationToken)\r\n at Microsoft.AspNetCore.OpenApi.OpenApiDocumentService.GetOperationsAsync(IGrouping`2 descriptions, OpenApiDocument document, IServiceProvider scopedServiceProvider, IOpenApiOperationTransformer[] operationTransformers, IOpenApiSchemaTransformer[] schemaTransformers, CancellationToken cancellationToken)\r\n at Microsoft.AspNetCore.OpenApi.OpenApiDocumentService.GetOpenApiPathsAsync(OpenApiDocument document, IServiceProvider scopedServiceProvider, IOpenApiOperationTransformer[] operationTransformers, IOpenApiSchemaTransformer[] schemaTransformers, CancellationToken cancellationToken)\r\n at Microsoft.AspNetCore.OpenApi.OpenApiDocumentService.GetOpenApiDocumentAsync(IServiceProvider scopedServiceProvider, HttpRequest httpRequest, CancellationToken cancellationToken)\r\n at Microsoft.AspNetCore.Builder.OpenApiEndpointRouteBuilderExtensions.<>c__DisplayClass0_0.<<MapOpenApi>b__0>d.MoveNext()\r\n--- End of stack trace from previous location` ``` ### .NET Version .NET 10.0.102 / 10.0.2 ### Anything else? _No response_