⬆️ Bump actions/download-artifact from 3 to 4 (#2)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/CI.yml

@@ -209,7 +209,7 @@ jobs:
     if: "startsWith(github.ref, 'refs/tags/')"
     needs: [pre-commit, test-python, linux, windows, macos, sdist]
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: wheels
       - name: Publish to PyPI