Bump MSTest.TestAdapter from 3.0.2 to 3.2.1

Bumps [MSTest.TestAdapter](https://github.com/microsoft/testfx) from 3.0.2 to 3.2.1.
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.0.2...v3.2.1)

---
updated-dependencies:
- dependency-name: MSTest.TestAdapter
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Tests/Tests.csproj

@@ -27,7 +27,7 @@
     </PackageReference>
     <PackageReference Include="FluentAssertions" Version="6.9.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.4.1" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.0.2" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.2.1" />
     <PackageReference Include="MSTest.TestFramework" Version="3.0.2" />
     <PackageReference Include="coverlet.collector" Version="3.2.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>