Bump coverlet.msbuild from 6.0.0 to 6.0.4 (#3562)

---
updated-dependencies:
- dependency-name: coverlet.msbuild
  dependency-version: 6.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

lang/csharp/versions.props

@@ -60,7 +60,7 @@
   <PropertyGroup Label="Build, Test, Code Analysis, Benchmark Package Versions">
     <BenchmarkDotNetVersion>0.15.8</BenchmarkDotNetVersion>
     <CoverletCollectorVersion>6.0.0</CoverletCollectorVersion>
-    <CoverletMSBuildVersion>6.0.0</CoverletMSBuildVersion>
+    <CoverletMSBuildVersion>6.0.4</CoverletMSBuildVersion>
     <MicrosoftBuildFrameworkVersion>17.8.43</MicrosoftBuildFrameworkVersion>
     <MicrosoftBuildUtilitiesCoreVersion>17.8.43</MicrosoftBuildUtilitiesCoreVersion>
     <MicrosoftCodeAnalysisVersion>4.7.0</MicrosoftCodeAnalysisVersion>