downgrade xunit.runner.visualstudio

Author: phnx47

tests/Prometheus.Client.MetricPusher.HostedService.Tests.csproj

@@ -10,7 +10,7 @@
     <PackageReference Include="NSubstitute" Version="5.3.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
     <PackageReference Include="xunit" Version="2.9.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.0.0">
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.*">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>