Bump Microsoft.Extensions.Http from 6.0.0 to 7.0.0 (#6243)

Bumps [Microsoft.Extensions.Http](https://github.com/dotnet/runtime) from 6.0.0 to 7.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](https://github.com/dotnet/runtime/commits)

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

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src/examples/WindowsService/AkkaWindowsService/AkkaWindowsService.csproj

@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Hosting.WindowsServices" Version="6.0.1" />
-    <PackageReference Include="Microsoft.Extensions.Http" Version="6.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Http" Version="7.0.0" />
   </ItemGroup>
 
   <ItemGroup>