test(integration): Enable the integration tests to run on both net8 and net9 (#608)

Enable the integration tests to run on both net8 and net9

Signed-off-by: Kyle Julian <[email protected]>

Author: kylejuliandev

Directory.Packages.props

@@ -43,7 +43,14 @@
     <PackageVersion Include="Reqnroll.xUnit" Version="2.4.1" />
     <PackageVersion Include="xunit" Version="2.9.3" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2" />
-    <PackageVersion Include="Microsoft.AspNetCore.TestHost" Version="9.0.3" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
+    <PackageVersion Include="Microsoft.AspNetCore.TestHost" Version="8.0.21" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'">
+    <PackageVersion Include="Microsoft.AspNetCore.TestHost" Version="9.0.10" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(OS)' == 'Unix'">

test/OpenFeature.IntegrationTests/OpenFeature.IntegrationTests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>