Update dependency Microsoft.NET.Test.Sdk to 17.12.0 (#29)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

tests/TurnerSoftware.BuildVersioning.Tests/TurnerSoftware.BuildVersioning.Tests.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.7.1" />
     <PackageReference Include="MSTest.TestFramework" Version="3.7.1" />