Bump coverlet.collector from 6.0.0 to 6.0.3

Bumps [coverlet.collector](https://github.com/coverlet-coverage/coverlet) from 6.0.0 to 6.0.3.
- [Release notes](https://github.com/coverlet-coverage/coverlet/releases)
- [Commits](coverlet-coverage/coverlet@v6.0.0...v6.0.3)

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

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

JsonHelper.Net.Test/JsonHelper.Net.Test.csproj

@@ -14,7 +14,7 @@
     <PackageReference Include="NUnit" Version="3.13.3" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
     <PackageReference Include="NUnit.Analyzers" Version="3.6.1" />
-    <PackageReference Include="coverlet.collector" Version="6.0.0" />
+    <PackageReference Include="coverlet.collector" Version="6.0.3" />
   </ItemGroup>
 
   <ItemGroup>