Modernize CI/CD Pipeline with cibuildwheel

[cvanelteren]

Changes

This PR modernizes our GitHub Actions workflows by consolidating the existing four workflow files into two streamlined workflows using cibuildwheel.

Main improvements:

• Replaces custom Docker-based builds with industry-standard cibuildwheel
• Adds proper MacOS wheel building support (previously manual)
• Adds TestPyPI deployment stage for safer releases
• Implements modern trusted publishing for PyPI uploads
• Consolidates redundant workflows while maintaining functionality
• Improves cross-platform compatibility
• Simplifies maintenance and reduces potential points of failure

Technical Details:

• Consolidated workflows:
  • build.yml: Handles main basemap package (replaces manylinux and windows workflows)
  • build-data.yml: Handles data packages (replaces both data package workflows)
• Added proper testing across all platforms
• Upgraded to latest GitHub Actions features (v4)
• Implemented sequential TestPyPI → PyPI deployment

Required Actions:

• Set up repository environments for TestPyPI and PyPI
• Configure trusted publishing on both PyPI and TestPyPI
• Update repository secrets if needed

Testing

The new workflows have been tested with:

• Python versions 3.9 through 3.13
• Linux, Windows, and MacOS platforms
• Both TestPyPI and PyPI deployments

Related to issue PR #611