Merge pull request #1061 from Caliburn-Micro/dependabot/nuget/src/Caliburn.Micro.Core.Tests/multi-482fdbdb78

Bump xunit.runner.visualstudio from 2.8.2 to 3.1.5

Author: vb2ae

src/Caliburn.Micro.Core.Tests/Caliburn.Micro.Core.Tests.csproj

@@ -16,7 +16,7 @@
     </PackageReference>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>