Bump System.Net.Http.WinHttpHandler

Bumps the system group with 1 update in the / directory: [System.Net.Http.WinHttpHandler](https://github.com/dotnet/runtime).


Updates `System.Net.Http.WinHttpHandler` from 8.0.2 to 9.0.0
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v8.0.2...v9.0.0)

---
updated-dependencies:
- dependency-name: System.Net.Http.WinHttpHandler
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: system
...

Signed-off-by: dependabot[bot] <[email protected]>

src/Tests/Tests.csproj

@@ -36,7 +36,7 @@
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.10.0" Pack="false" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="8.0.1" />
-    <PackageReference Include="System.Net.Http.WinHttpHandler" Version="8.0.2" />
+    <PackageReference Include="System.Net.Http.WinHttpHandler" Version="9.0.0" />
     <PackageReference Include="Xunit.SkippableFact" Version="1.4.13" />
   </ItemGroup>