[.Net] update dotnet-ci and dotnet-release to use 8.0.x version when setting up .NET. And enable format check (#3136)

* use 8.0.x versin

* enable format check

* change file header

* apply code format

* add instructions in ci to fix format error

* add comment back

dotnet/test/AutoGen.Anthropic.Tests/AnthropicClientAgentTest.cs

@@ -188,7 +188,7 @@ public class AnthropicClientAgentTest
         IMessage[] chatHistory = [
             new TextMessage(Role.User, "what's the weather in Philadelphia?"),
             new ToolCallMessage([toolCall], from: "assistant"),
-            new ToolCallResultMessage([toolCall], from: "user" ),
+            new ToolCallResultMessage([toolCall], from: "user"),
         ];
 
         var reply = await agent.SendAsync(chatHistory: chatHistory);

dotnet/test/AutoGen.Anthropic.Tests/AnthropicClientTest.cs

@@ -1,4 +1,7 @@
-using System.Text;
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// AnthropicClientTest.cs
+
+using System.Text;
 using System.Text.Json;
 using System.Text.Json.Nodes;
 using System.Text.Json.Serialization;
@@ -59,7 +62,9 @@ public class AnthropicClientTests
         foreach (ChatCompletionResponse result in results)
         {
             if (result.Delta is not null && !string.IsNullOrEmpty(result.Delta.Text))
+            {
                 sb.Append(result.Delta.Text);
+            }
         }
 
         string resultContent = sb.ToString();

dotnet/test/AutoGen.Anthropic.Tests/AnthropicTestFunctionCalls.cs

@@ -1,5 +1,5 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
-// AnthropicTestFunctions.cs
+// AnthropicTestFunctionCalls.cs
 
 using System.Text.Json;
 using System.Text.Json.Serialization;

dotnet/test/AutoGen.Gemini.Tests/GeminiAgentTests.cs

@@ -1,13 +1,13 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // GeminiAgentTests.cs
 
-using AutoGen.Tests;
-using Google.Cloud.AIPlatform.V1;
 using AutoGen.Core;
-using FluentAssertions;
 using AutoGen.Gemini.Extension;
-using static Google.Cloud.AIPlatform.V1.Part;
+using AutoGen.Tests;
+using FluentAssertions;
+using Google.Cloud.AIPlatform.V1;
 using Xunit.Abstractions;
+using static Google.Cloud.AIPlatform.V1.Part;
 namespace AutoGen.Gemini.Tests;
 
 public class GeminiAgentTests

dotnet/test/AutoGen.Gemini.Tests/VertexGeminiClientTests.cs

@@ -1,5 +1,5 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
-// GeminiVertexClientTests.cs
+// VertexGeminiClientTests.cs
 
 using AutoGen.Tests;
 using FluentAssertions;

dotnet/test/AutoGen.Ollama.Tests/OllamaTextEmbeddingServiceTests.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
+// Copyright (c) Microsoft Corporation. All rights reserved.
 // OllamaTextEmbeddingServiceTests.cs
 
 using AutoGen.Tests;

dotnet/test/AutoGen.SourceGenerator.Tests/FunctionCallTemplateEncodingTests.cs

@@ -1,7 +1,9 @@
-// Using directives
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// FunctionCallTemplateEncodingTests.cs
+
 using System.Text.Json; // Needed for JsonSerializer
-using Xunit; // Needed for Fact and Assert
 using AutoGen.SourceGenerator.Template; // Needed for FunctionCallTemplate
+using Xunit; // Needed for Fact and Assert
 
 namespace AutoGen.SourceGenerator.Tests
 {
@@ -89,4 +91,4 @@ namespace AutoGen.SourceGenerator.Tests
             Assert.Contains("Description = @\"This is a \"\"parameter\"\" description\"", result);
         }
     }
-}
+}

dotnet/test/AutoGen.Tests/GroupChat/GraphTests.cs

@@ -1,4 +1,6 @@
-
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// GraphTests.cs
+
 using Xunit;
 
 namespace AutoGen.Tests

dotnet/test/AutoGen.WebAPI.Tests/EchoAgent.cs

@@ -1,5 +1,5 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
-// OpenAIChatCompletionMiddlewareTests.cs
+// EchoAgent.cs
 
 using System.Runtime.CompilerServices;
 using AutoGen.Core;