chore(deps): update dependency coverlet.msbuild to 6.0.4

Author: renovate[bot]

src/Splat.DependencyInjection.SourceGenerator.Tests/Splat.DependencyInjection.SourceGenerator.Tests.csproj

@@ -11,7 +11,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.9.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.0.1" PrivateAssets="all" />
-    <PackageReference Include="coverlet.msbuild" Version="6.0.2" />
+    <PackageReference Include="coverlet.msbuild" Version="6.0.4" />
     <PackageReference Include="Verify.SourceGenerators" Version="2.4.3" />
     <PackageReference Include="ReactiveMarbles.SourceGenerator.TestNuGetHelper" Version="1.3.1" />
     <PackageReference Include="Verify.Xunit" Version="26.6.0" />