chore(deps): bump the mstest-dependencies group with 3 updates

Bumps the mstest-dependencies group with 3 updates: [Microsoft.NETFramework.ReferenceAssemblies](https://github.com/Microsoft/dotnet), [MSTest.TestAdapter](https://github.com/microsoft/testfx) and [MSTest.TestFramework](https://github.com/microsoft/testfx).


Updates `Microsoft.NETFramework.ReferenceAssemblies` from 1.0.3 to 1.0.3
- [Commits](https://github.com/Microsoft/dotnet/commits)

Updates `MSTest.TestAdapter` from 3.7.3 to 3.8.0
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.7.3...v3.8.0)

Updates `Microsoft.NETFramework.ReferenceAssemblies` from 1.0.3 to 1.0.3
- [Commits](https://github.com/Microsoft/dotnet/commits)

Updates `MSTest.TestFramework` from 3.7.3 to 3.8.0
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.7.3...v3.8.0)

---
updated-dependencies:
- dependency-name: Microsoft.NETFramework.ReferenceAssemblies
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: mstest-dependencies
- dependency-name: MSTest.TestAdapter
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: mstest-dependencies
- dependency-name: Microsoft.NETFramework.ReferenceAssemblies
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: mstest-dependencies
- dependency-name: MSTest.TestFramework
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: mstest-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>

Directory.Build.props

@@ -61,8 +61,8 @@
 
 	<ItemGroup Condition="$(MSBuildProjectName.EndsWith('Tests'))">
 		<PackageReference Include="FluentAssertions" Version="8.0.1"/>
-		<PackageReference Include="MSTest.TestAdapter" Version="3.7.3"/>
-		<PackageReference Include="MSTest.TestFramework" Version="3.7.3"/>
+		<PackageReference Include="MSTest.TestAdapter" Version="3.8.0"/>
+		<PackageReference Include="MSTest.TestFramework" Version="3.8.0"/>
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0"/>
 		<PackageReference Include="Moq" Version="[4.18.4]"/>
 		<PackageReference Include="coverlet.collector" Version="6.0.4"/>