Change NuGet publishing to use Trusted Publishing (nuget.org)

[askpt]

Requirements

Update the release workflow to use Trusted Publishing for nuget.org as per official documentation: https://learn.microsoft.com/en-us/nuget/nuget-org/trusted-publishing

• Update CI/CD pipeline to use Trusted Publishing with nuget.org
• Replace any existing API key-based publishing methods
• Document the new process for maintainers

This change will enhance security and follow best practices for .NET package publishing.