Update mstest monorepo to v4

Author: renovate[bot]

ArchUnitNET.MSTestV2Tests/ArchUnitNET.MSTestV2Tests.csproj

@@ -7,8 +7,8 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
-    <PackageReference Include="MSTest.TestAdapter" Version="2.2.10" />
-    <PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
+    <PackageReference Include="MSTest.TestAdapter" Version="4.0.2" />
+    <PackageReference Include="MSTest.TestFramework" Version="4.0.2" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\ArchUnitNET.MSTestV2\ArchUnitNET.MSTestV2.csproj" />

ArchUnitNET.MSTestV3Tests/ArchUnitNET.MSTestV3Tests.csproj

@@ -6,7 +6,7 @@
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="MSTest" Version="3.10.4" />
+    <PackageReference Include="MSTest" Version="4.0.2" />
   </ItemGroup>
   <ItemGroup>
     <Using Include="Microsoft.VisualStudio.TestTools.UnitTesting" />