chore(deps): bump MSTest.TestFramework from 3.3.1 to 3.4.3

Bumps [MSTest.TestFramework](https://github.com/microsoft/testfx) from 3.3.1 to 3.4.3.
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.3.1...v3.4.3)

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

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

Author: dependabot[bot]

Directory.Packages.props

@@ -4,7 +4,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageVersion Include="MSTest.TestAdapter" Version="3.3.1" />
-    <PackageVersion Include="MSTest.TestFramework" Version="3.3.1" />
+    <PackageVersion Include="MSTest.TestFramework" Version="3.4.3" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageVersion Include="System.ComponentModel.Annotations" Version="5.0.0" />
     <PackageVersion Include="coverlet.collector" Version="6.0.2" />