Bump actions/download-artifact from 4 to 5

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
...

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

Author: dependabot[bot]

.github/workflows/deploy.yaml

@@ -81,12 +81,12 @@ jobs:
     if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags/v')
     steps:
       - name: Download sdist artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: sdist
           path: dist
       - name: Download wheels artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           pattern: wheels-*
           merge-multiple: true
@@ -104,12 +104,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download sdist artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: sdist
           path: dist
       - name: Download wheels artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           pattern: wheels-*
           merge-multiple: true