chore: Use xunit.v3

Author: linkdotnet

tests/LinkDotNet.StringBuilder.Benchmarks/LinkDotNet.StringBuilder.Benchmarks.csproj

@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net8.0</TargetFramework>
+        <TargetFramework>net9.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <IsPackable>false</IsPackable>

tests/LinkDotNet.StringBuilder.UnitTests/LinkDotNet.StringBuilder.UnitTests.csproj

@@ -10,8 +10,8 @@
     <ItemGroup>
         <PackageReference Include="FluentAssertions" Version="7.0.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-        <PackageReference Include="xunit" Version="2.9.2" />
-        <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
+        <PackageReference Include="xunit.v3" Version="1.0.0" />
+        <PackageReference Include="xunit.runner.visualstudio" Version="3.0.0">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>