chore: focus on Linux builds for Colab compatibility

- Remove macOS from build matrix to simplify CI
- Keep macOS configurations for future reference but they won't be used
- This speeds up CI and focuses on the primary target (Colab/Linux)

.github/workflows/build-cibuildwheel.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest]  # Focus on Linux/manylinux for Colab compatibility
         
     steps:
       - uses: actions/checkout@v4