chore(deps): update dependency GitVersion.MsBuild to v5.12.0 (#28)

Author: renovate[bot]

Directory.Build.props

@@ -2,7 +2,7 @@
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <PackageReference Include="GitVersion.MsBuild">
-      <Version>5.11.1</Version>
+      <Version>5.12.0</Version>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies">