chore(deps): update dependency coverlet.msbuild to v8 (#146)

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

Author: renovate[bot]

src/directory.packages.props

@@ -26,7 +26,7 @@
 
   <ItemGroup>
     <PackageVersion Include="coverlet.collector" Version="6.0.4" />
-    <PackageVersion Include="coverlet.msbuild" Version="6.0.4" />
+    <PackageVersion Include="coverlet.msbuild" Version="8.0.0" />
     <PackageVersion Include="FluentAssertions" Version="8.8.0" />
     <PackageVersion Include="FluentAssertions.Analyzers" Version="0.34.1" />
     <PackageVersion Include="ReactiveUI.Testing" Version="22.3.1" />