Bump Microsoft.NET.Test.Sdk from 16.9.4 to 17.11.1

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 16.9.4 to 17.11.1.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Changelog](https://github.com/microsoft/vstest/blob/main/docs/releases.md)
- [Commits](microsoft/vstest@v16.9.4...v17.11.1)

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

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

Akismet.Tests/Akismet.Tests.csproj

@@ -7,7 +7,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
 		<PackageReference Include="Shouldly" Version="4.2.1" />
 		<PackageReference Include="xunit" Version="2.9.2" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">