build(deps): Bump MSTest.TestFramework from 3.2.0 to 3.2.1

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]>

Directory.Packages.props

@@ -20,7 +20,7 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageVersion Include="Microsoft.TestPlatform.TestHost" Version="17.9.0" />
     <PackageVersion Include="MSTest.TestAdapter" Version="3.2.1" />
-    <PackageVersion Include="MSTest.TestFramework" Version="3.2.0" />
+    <PackageVersion Include="MSTest.TestFramework" Version="3.2.1" />
     <PackageVersion Include="NUnit" Version="4.0.1" />
     <PackageVersion Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageVersion Include="NUnit.Analyzers" Version="4.0.1" />