Bump actions/download-artifact from 4 to 5 (#322)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4 to 5.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4...v5)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -88,7 +88,7 @@ jobs:
       (github.event_name == 'release' && github.event.action == 'published') || 
       (github.event_name == 'push' && github.ref == 'refs/heads/main')
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v5
         with:
           # Unpack all CIBW artifacts (wheels + sdist) into dist/
           # pypa/gh-action-pypi-publish action uploads contents of dist/ unconditionally
@@ -110,7 +110,7 @@ jobs:
       id-token: write
     if: github.event_name == 'release' && github.event.action == 'published'
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v5
         with:
           pattern: cibw-*
           path: dist