chore: Bump Microsoft.NET.Test.Sdk and MSTest (#87)

Bumps Microsoft.NET.Test.Sdk from 17.14.1 to 18.0.1
Bumps MSTest from 3.11.1 to 4.0.2

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-version: 18.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: MSTest
  dependency-version: 4.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/Directory.Build.props

@@ -110,10 +110,10 @@
 	<ItemGroup Condition=" $(IsTestProject) == 'true' ">
 		<PackageReference Include="FluentAssertions" Version="8.8.0" PrivateAssets="All" />
 		<PackageReference Include="FluentAssertions.Analyzers" Version="0.*" PrivateAssets="All" />
-		<PackageReference Include="MSTest" Version="3.*" />
+		<PackageReference Include="MSTest" Version="4.0.2" />
 
 		<!-- @robertmclaws: Temporary workaround for 8.0 bug: https://github.com/microsoft/vstest/pull/4792 -->
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.*-*" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
 		<PackageReference Include="Microsoft.TestPlatform" Version="17.*-*" />
 	</ItemGroup>