Bump MSTest.TestFramework from 3.2.0 to 3.2.1 (#40)

Bumps [MSTest.TestFramework](https://github.com/microsoft/testfx) from 3.2.0 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@v.3.2.0...v3.2.1)

---
updated-dependencies:
- dependency-name: MSTest.TestFramework
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

libNOM.test/libNOM.test.csproj

@@ -22,7 +22,7 @@
     <PackageReference Include="DotNetZip" Version="1.16.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.2.0" />
-    <PackageReference Include="MSTest.TestFramework" Version="3.2.0" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.2.1" />
     <PackageReference Include="coverlet.collector" Version="6.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>