Merge pull request #36 from shinji-san/dependabot/nuget/develop/Microsoft.NET.Test.Sdk-17.9.0

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

Resolves: #36

Author: shinji-san

tests/LuhnDotNetTest.csproj

@@ -8,7 +8,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
         <PackageReference Include="xunit" Version="2.7.0" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>