Bump coverlet.msbuild from 6.0.3 to 6.0.4

Bumps [coverlet.msbuild](https://github.com/coverlet-coverage/coverlet) from 6.0.3 to 6.0.4.
- [Release notes](https://github.com/coverlet-coverage/coverlet/releases)
- [Commits](coverlet-coverage/coverlet@v6.0.3...v6.0.4)

---
updated-dependencies:
- dependency-name: coverlet.msbuild
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Directory.Packages.props

@@ -10,7 +10,7 @@
     <PackageVersion Include="System.Collections.Immutable" Version="9.0.1" />
     <PackageVersion Include="CommandLineParser" Version="2.9.1" />
     <PackageVersion Include="BenchmarkDotNet" Version="0.14.0" />
-    <PackageVersion Include="coverlet.msbuild" Version="6.0.3" />
+    <PackageVersion Include="coverlet.msbuild" Version="6.0.4" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageVersion Include="ReportGenerator" Version="5.4.3" />
   </ItemGroup>