Bump coverlet.collector from 6.0.2 to 6.0.4

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Directory.Packages.props

@@ -68,7 +68,7 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
     <PackageVersion Include="Moq" Version="4.20.72" />
     <PackageVersion Include="StyleCop.Analyzers" Version="1.2.0-beta.556" />
-    <PackageVersion Include="coverlet.collector" Version="6.0.2" />
+    <PackageVersion Include="coverlet.collector" Version="6.0.4" />
     <PackageVersion Include="xunit" Version="2.9.2" />
     <PackageVersion Include="xunit.abstractions" Version="2.0.3" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2"/>