Bump Microsoft.NET.Test.Sdk from 17.6.3 to 17.8.0

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 17.6.3 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/v17.6.3...v17.8.0)

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

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

Directory.Packages.props

@@ -55,7 +55,7 @@
     <PackageVersion Include="Swashbuckle.AspNetCore.Annotations" Version="6.5.0" />
     <!-- Test -->
     <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="$(AspNetVersion)" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.6.3" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageVersion Include="xunit" Version="2.6.4" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.4.5">
       <PrivateAssets>all</PrivateAssets>