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] <support@github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -71,6 +71,6 @@
     </PackageVersion>
     <PackageVersion Include="MSTest.TestAdapter" Version="3.5.2" />
     <PackageVersion Include="MSTest.TestFramework" Version="3.6.2" />
-    <PackageVersion Include="coverlet.collector" Version="6.0.2" />
+    <PackageVersion Include="coverlet.collector" Version="6.0.4" />
   </ItemGroup>
 </Project>