Bump Microsoft.Extensions.Http.Polly from 7.0.11 to 7.0.12 in /src

Bumps [Microsoft.Extensions.Http.Polly](https://github.com/dotnet/aspnetcore) from 7.0.11 to 7.0.12.
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v7.0.11...v7.0.12)

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

Signed-off-by: dependabot[bot] <support@github.com>

src/HackerNews/HackerNews.csproj

@@ -40,7 +40,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Microsoft.Extensions.Http.Polly" Version="7.0.11" />
+		<PackageReference Include="Microsoft.Extensions.Http.Polly" Version="7.0.12" />
     <PackageReference Include="Refit.HttpClientFactory" Version="7.0.0" />
 		<PackageReference Include="Azure.AI.TextAnalytics" Version="5.3.0" />
 		<PackageReference Include="CommunityToolkit.Maui.Markup" Version="3.3.0" />