Rollback xunit runner to avoid delay-signed assembly load failures

See xunit/xunit#3130

Author: AArnott

.github/renovate.json

@@ -12,6 +12,10 @@
 			"matchPackageNames": ["xunit*"],
 			"groupName": "xunit"
 		},
+		{
+			"matchPackageNames": ["xunit.runner.visualstudio"],
+			"allowedVersions": "<3.0"
+		},
 		{
 			"matchDatasources": ["dotnet-version", "docker"],
 			"matchDepNames": ["dotnet-sdk", "mcr.microsoft.com/dotnet/sdk"],

Directory.Packages.props

@@ -46,8 +46,8 @@
   <ItemGroup Label="Library.Template">
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageVersion Include="Microsoft.VisualStudio.Internal.MicroBuild.NonShipping" Version="$(MicroBuildVersion)" />
-    <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.1" />
-    <PackageVersion Include="xunit" Version="2.9.1" />
+    <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2" />
+    <PackageVersion Include="xunit" Version="2.9.3" />
   </ItemGroup>
   <ItemGroup>
     <GlobalPackageReference Include="Microsoft.CodeAnalysis.ResxSourceGenerator" Version="$(CodeAnalysisAnalyzerVersion)" />

test/IsolatedTestHost/App.config

@@ -1,6 +1,12 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <configuration>
   <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+      </dependentAssembly>
+    </assemblyBinding>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
         <assemblyIdentity name="System.Threading.Tasks.Extensions" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
@@ -10,13 +16,13 @@
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
         <assemblyIdentity name="xunit.core" publicKeyToken="8d05b1bb7a6fdb6c" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-2.6.3.0" newVersion="2.6.3.0" />
+        <bindingRedirect oldVersion="0.0.0.0-2.9.3.0" newVersion="2.9.3.0" />
       </dependentAssembly>
     </assemblyBinding>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
         <assemblyIdentity name="xunit.execution.desktop" publicKeyToken="8d05b1bb7a6fdb6c" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-2.6.3.0" newVersion="2.6.3.0" />
+        <bindingRedirect oldVersion="0.0.0.0-2.9.2.0" newVersion="2.9.2.0" />
       </dependentAssembly>
     </assemblyBinding>
   </runtime>