.Net: Bump AWSSDK to 4.0.0-preview.13 in /dotnet (microsoft#11484)

### Motivation and Context

Code fixes for microsoft#11424

### Description

<!-- Describe your changes, the overall approach, the underlying design.
These notes will help understanding how your code works. Thanks! -->

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [ ] The code builds clean without any errors or warnings
- [ ] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [ ] All unit tests pass, and I have added new tests where possible
- [ ] I didn't break anyone 😄

Author: markwallace-microsoft

dotnet/Directory.Packages.props

@@ -7,10 +7,10 @@
   <ItemGroup>
     <PackageVersion Include="Aspire.Azure.Search.Documents" Version="9.1.0" />
     <PackageVersion Include="Aspire.Hosting.Azure.Search" Version="9.1.0" />
-    <PackageVersion Include="AWSSDK.BedrockAgent" Version="4.0.0-preview.10" />
-    <PackageVersion Include="AWSSDK.BedrockAgentRuntime" Version="4.0.0-preview.10" />
-    <PackageVersion Include="AWSSDK.BedrockRuntime" Version="4.0.0-preview.11" />
-    <PackageVersion Include="AWSSDK.Core" Version="4.0.0-preview.11" />
+    <PackageVersion Include="AWSSDK.BedrockAgent" Version="4.0.0-preview.13" />
+    <PackageVersion Include="AWSSDK.BedrockAgentRuntime" Version="4.0.0-preview.13" />
+    <PackageVersion Include="AWSSDK.BedrockRuntime" Version="4.0.0-preview.13" />
+    <PackageVersion Include="AWSSDK.Core" Version="4.0.0-preview.13" />
     <PackageVersion Include="Aspire.Azure.AI.OpenAI" Version="9.1.0-preview.1.25121.10" />
     <PackageVersion Include="Aspire.Hosting.AppHost" Version="9.1.0" />
     <PackageVersion Include="Aspire.Hosting.Azure.CognitiveServices" Version="9.1.0" />

dotnet/src/Agents/Bedrock/Extensions/BedrockAgentInvokeExtensions.cs

@@ -8,7 +8,7 @@
 using System.Threading.Tasks;
 using Amazon.BedrockAgentRuntime;
 using Amazon.BedrockAgentRuntime.Model;
-using Amazon.Runtime.EventStreams.Internal;
+using Amazon.Runtime.EventStreams;
 using Microsoft.SemanticKernel.Agents.Extensions;
 using Microsoft.SemanticKernel.ChatCompletion;
 using Microsoft.SemanticKernel.Connectors.FunctionCalling;

dotnet/src/Agents/UnitTests/Bedrock/BedrockAgentChannelTests.cs

@@ -273,6 +273,7 @@ private List<ChatMessageContent> CreateIncorrectSequenceHistory()
             "fakeSecretKey",
             mockRuntimeClientConfig.Object);
 #pragma warning restore Moq1410 // Moq: Set MockBehavior to Strict
+#pragma warning disable CA2000 // Dispose objects before losing scope
         mockRuntimeClient.Setup(x => x.InvokeAgentAsync(
             It.IsAny<InvokeAgentRequest>(),
             It.IsAny<CancellationToken>())
@@ -283,6 +284,7 @@ private List<ChatMessageContent> CreateIncorrectSequenceHistory()
             // Tests should expect an exception to be thrown.
             HttpStatusCode = System.Net.HttpStatusCode.NotFound,
         });
+#pragma warning restore CA2000 // Dispose objects before losing scope
 
         return (mockClient, mockRuntimeClient);
     }

dotnet/src/Agents/UnitTests/Bedrock/BedrockAgentTests.cs

@@ -293,10 +293,12 @@ await Assert.ThrowsAsync<KernelException>(async () =>
             }
         });
 
+#pragma warning disable CA2000 // Dispose objects before losing scope
         mockRuntimeClient.Setup(x => x.InvokeAgentAsync(
             It.IsAny<InvokeAgentRequest>(),
             It.IsAny<CancellationToken>()))
             .ReturnsAsync(new InvokeAgentResponse() { HttpStatusCode = System.Net.HttpStatusCode.OK });
+#pragma warning restore CA2000 // Dispose objects before losing scope
 
         return (mockClient, mockRuntimeClient);
     }

dotnet/src/Connectors/Connectors.Amazon.UnitTests/Services/BedrockChatCompletionServiceTests.cs

@@ -143,11 +143,13 @@ public async Task GetStreamingChatMessageContentsAsyncShouldReturnStreamedChatMe
             {
                 URL = "https://bedrock-runtime.us-east-1.amazonaws.com"
             });
+#pragma warning disable CA2000 // Dispose objects before losing scope
         mockBedrockApi.Setup(m => m.ConverseStreamAsync(It.IsAny<ConverseStreamRequest>(), It.IsAny<CancellationToken>()))
             .ReturnsAsync(new ConverseStreamResponse
             {
                 Stream = new ConverseStreamOutput(new MemoryStream(content))
             });
+#pragma warning restore CA2000 // Dispose objects before losing scope
 
         var kernel = Kernel.CreateBuilder().AddBedrockChatCompletionService(modelId, mockBedrockApi.Object).Build();
         var service = kernel.GetRequiredService<IChatCompletionService>();

dotnet/src/Connectors/Connectors.Amazon.UnitTests/Services/BedrockTextGenerationServiceTests.cs

@@ -191,12 +191,14 @@ public async Task GetStreamingTextContentsAsyncShouldReturnStreamedTextContentsA
             {
                 URL = "https://bedrock-runtime.us-east-1.amazonaws.com"
             });
+#pragma warning disable CA2000 // Dispose objects before losing scope
         mockBedrockApi.Setup(m => m.InvokeModelWithResponseStreamAsync(It.IsAny<InvokeModelWithResponseStreamRequest>(), It.IsAny<CancellationToken>()))
             .ReturnsAsync(new InvokeModelWithResponseStreamResponse()
             {
                 Body = new ResponseStream(new MemoryStream(content)),
                 ContentType = "application/json"
             });
+#pragma warning restore CA2000 // Dispose objects before losing scope
         var kernel = Kernel.CreateBuilder().AddBedrockTextGenerationService(modelId, mockBedrockApi.Object).Build();
         var service = kernel.GetRequiredService<ITextGenerationService>();