build(deps): bump Microsoft.Extensions.Http from 7.0.0 to 8.0.0 (#1615)

Bumps [Microsoft.Extensions.Http](https://github.com/dotnet/runtime) from 7.0.0 to 8.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v7.0.0...v8.0.0)

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Http
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Refit.HttpClientFactory/Refit.HttpClientFactory.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <Product>Refit HTTP Client Factory Extensions</Product>
@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\Refit\Refit.csproj" PrivateAssets="Analyzers" />
-    <PackageReference Include="Microsoft.Extensions.Http" Version="7.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Http" Version="8.0.0" />
   </ItemGroup>
 
 </Project>