Bump actions/download-artifact from 3 to 4.1.7 in /.github/workflows

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.1.7.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v3...v4.1.7)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/code.yml

@@ -83,7 +83,7 @@ jobs:
     # upload to PyPI and make a release on every tag
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4.1.7
 
       - name: Github Release
         # We pin to the SHA, not the tag, for security reasons.