chore: use a non-project specific token

Author: gpeacock

.github/workflows/build.yml

@@ -373,7 +373,7 @@ jobs:
       - name: Publish to PyPI
         uses: PyO3/maturin-action@v1
         env:
-          MATURIN_PYPI_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
+          MATURIN_PYPI_TOKEN: ${{ secrets.caipypi }}
         with:
           command: upload
           args: --non-interactive --skip-existing *