Bump actions/download-artifact from 3 to 4 (#206)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](https://github.com/actions/download-artifact/compare/v3...v4)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index e1e6756..5626def 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -188,7 +188,7 @@
     if: "startsWith(github.ref, 'refs/tags/')"
     needs: [linux, windows, macos, sdist, musllinux]
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: wheels
       - name: Publish to PyPI