chore(deps): bump MSTest.TestFramework from 3.6.4 to 3.7.0

Bumps [MSTest.TestFramework](https://github.com/microsoft/testfx) from 3.6.4 to 3.7.0.
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.6.4...v3.7.0)

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

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

Directory.Packages.props

@@ -9,7 +9,7 @@
 
         <PackageVersion Include="Stylecop.Analyzers" Version="1.1.118" />
 
-        <PackageVersion Include="MSTest.TestFramework" Version="3.6.4" />
+        <PackageVersion Include="MSTest.TestFramework" Version="3.7.0" />
         <PackageVersion Include="MSTest.TestAdapter" Version="3.5.0" />
         <PackageVersion Include="xunit" Version="2.9.2" />
         <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.1" />