Bump Microsoft.NET.Test.Sdk from 17.7.2 to 17.8.0 (#349)

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 17.7.2 to 17.8.0.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Changelog](https://github.com/microsoft/vstest/blob/main/docs/releases.md)
- [Commits](https://github.com/microsoft/vstest/compare/v17.7.2...v17.8.0)

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/Directory.Packages.props

@@ -16,9 +16,9 @@
   <!-- Test dependencies -->
   <ItemGroup>
     <PackageVersion Include="FluentAssertions" Version="6.12.0" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageVersion Include="FluentAssertions" Version="6.12.0" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageVersion Include="xunit" Version="2.5.1" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.5.1" />
     <PackageVersion Include="Akka.TestKit.Xunit2" Version="$(AkkaVersion)" />