(build) use different package versions for .net core 3.1

Author: arturcic

build/build/Tasks/Test/UnitTest.cs

@@ -89,7 +89,7 @@ private static void TestProjectForTarget(BuildContext context, FilePath project,
 
         if (string.Equals(framework, Constants.CoreFxVersion31))
         {
-            settings.Filter = $"TestCategory!={Constants.NoNetCoreApp31}";
+            // settings.Filter = $"TestCategory!={Constants.NoNetCoreApp31}";
         }
 
         if (string.Equals(framework, Constants.FullFxVersion48))

src/GitVersion.MsBuild.Tests/GitVersion.MsBuild.Tests.csproj

@@ -6,11 +6,20 @@
         <IsTestProject>true</IsTestProject>
     </PropertyGroup>
 
-    <ItemGroup>
+    <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp3.1' ">
+        <PackageReference Include="Buildalyzer" Version="3.2.2" />
+        <PackageReference Include="MSBuild.ProjectCreation" Version="6.3.3" />
+        <PackageReference Include="Microsoft.Build" Version="16.9.0" />
+    </ItemGroup>
+
+    <ItemGroup Condition=" '$(TargetFramework)' != 'netcoreapp3.1' ">
         <PackageReference Include="Buildalyzer" Version="3.2.3" />
-        <PackageReference Include="LibGit2Sharp" Version="$(PackageVersion_LibGit2Sharp)" />
-        <PackageReference Include="Microsoft.Build" Version="$(PackageVersion_MsBuild)" />
         <PackageReference Include="MSBuild.ProjectCreation" Version="6.3.3" />
+        <PackageReference Include="Microsoft.Build" Version="16.11.0" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <PackageReference Include="LibGit2Sharp" Version="$(PackageVersion_LibGit2Sharp)" />
     </ItemGroup>
 
     <ItemGroup>