ci: Bump actions/download-artifact in the gh-actions group

Bumps the gh-actions group with 1 update: [actions/download-artifact](https://github.com/actions/download-artifact).


Updates `actions/download-artifact` from 4.2.1 to 4.3.0
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@95815c3...d3f86a1)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: 4.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gh-actions
...

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -78,7 +78,7 @@ jobs:
       id-token: write
     environment: pypi
     steps:
-      - uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e # v4.2.1
+      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         with:
           path: dist
           merge-multiple: true