Bump Microsoft.NET.Test.Sdk from 17.8.0 to 17.9.0

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 17.8.0 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@v17.8.0...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] <[email protected]>

Author: dependabot[bot]

test/LibYear.Tests/LibYear.Tests.csproj

@@ -6,7 +6,7 @@
 	</PropertyGroup>
 	<ItemGroup>
 		<PackageReference Include="coverlet.collector" Version="6.0.0" />
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
 		<PackageReference Include="NSubstitute" Version="5.1.0" />
 		<PackageReference Include="Spectre.Console.Testing" Version="0.48.0" />
 		<PackageReference Include="xunit" Version="2.6.6" />