Bump Microsoft.NET.Test.Sdk from 17.7.2 to 17.9.0

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 17.7.2 to 17.9.0.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Changelog](https://github.com/microsoft/vstest/blob/main/docs/releases.md)
- [Commits](microsoft/vstest@v17.7.2...v17.9.0)

---
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

@@ -59,7 +59,7 @@
     <PackageVersion Include="Duende.IdentityServer.EntityFramework.Storage" Version="6.3.5" />
     <PackageVersion Include="Duende.IdentityServer.Storage" Version="6.3.5" />
     <!-- VS Test -->
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <!-- Scaffolding -->
     <PackageVersion Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="8.0.0-rc.1.23461.3" />
     <!-- Grpc -->