Update dependency coverlet.collector to v6

Author: renovate[bot]

Tests/Directory.Build.props

@@ -3,7 +3,7 @@
   <Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
 
   <ItemGroup Label="Package References">
-    <PackageReference Include="coverlet.collector" PrivateAssets="All" Version="3.2.0">
+    <PackageReference Include="coverlet.collector" PrivateAssets="All" Version="6.0.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="JunitXml.TestLogger" Version="3.0.124" />