Update .github/workflows/cibuildwheel.yml

Co-authored-by: Thomas A Caswell <[email protected]>

Author: seberg

.github/workflows/cibuildwheel.yml

@@ -101,7 +101,7 @@ jobs:
       # If using all `--pre` releases creates issues, the NumPy wheel can be
       # istalled more targeted.
       CIBW_BUILD_FRONTEND: >-
-        ${{ (((github.event_name == 'main' && github.ref == 'refs/heads/main') ||
+        ${{ (((github.event_name == 'push' && github.ref == 'refs/heads/main') ||
               (github.event_name == 'pull_request' && github.base_ref == 'refs/heads/main')) &&
             'pip; args: --pre --extra-index-url "https://pypi.anaconda.org/scientific-python-nightly-wheels/simple"') ||
             'build' }}