chore(deps): update dependency gitversion.msbuild to v6 (#29)

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

Author: renovate[bot]

src/Directory.Build.props

@@ -26,6 +26,6 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="GitVersion.MsBuild" Version="5.12.0" PrivateAssets="all"/>
+    <PackageReference Include="GitVersion.MsBuild" Version="6.0.4" PrivateAssets="all"/>
   </ItemGroup>
 </Project>