Introduce a workflow to build kernel modules for multiple header packages on PRs and releases. PR builds verify compilation, while release builds package outputs and publish them to a Gitea release. This enhances automation and ensures compatibility across target environments.
The `.gitea/workflows/ci.yml` file was removed as it is no longer needed. The build steps defined in the file have been deprecated and are not in use in the current CI/CD pipeline.
Introduce a basic CI pipeline configuration using GitHub Actions. The
workflow runs on Ubuntu and consists of three simple build steps, which
print progress messages. This setup will serve as a foundation for
future CI/CD enhancements.
