Revert net8 & net9

Author: devlead

src/Directory.Packages.props

@@ -11,8 +11,8 @@
     <PackageVersion Include="coverlet.collector" Version="10.0.1" />
     <PackageVersion Include="Devlead.Console" Version="2026.5.15.709" />
     <PackageVersion Include="Devlead.Testing.MockHttp" Version="2026.5.15.777" />
-    <PackageVersion Include="Microsoft.Extensions.Http" Version="10.0.9" Condition="'$(TargetFramework)' == 'net8.0'"/>
-    <PackageVersion Include="Microsoft.Extensions.Http" Version="10.0.9" Condition="'$(TargetFramework)' == 'net9.0'"/>
+    <PackageVersion Include="Microsoft.Extensions.Http" Version="8.0.1" Condition="'$(TargetFramework)' == 'net8.0'"/>
+    <PackageVersion Include="Microsoft.Extensions.Http" Version="9.0.17" Condition="'$(TargetFramework)' == 'net9.0'"/>
     <PackageVersion Include="Microsoft.Extensions.Http" Version="10.0.9" Condition="'$(TargetFramework)' == 'net10.0'"/>
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
     <PackageVersion Include="MimeTypes" Version="2.5.2" />