chore(deps): update actions/download-artifact action to v5 (#369)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/publish-wheels.yml

@@ -35,14 +35,14 @@ jobs:
           echo "EOF" >> $GITHUB_ENV
 
       - name: Pillow-Heif sdist and wheels
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           path: wheelhouse_pillow_heif
           pattern: wheels_pillow_heif-*
           merge-multiple: true
 
       - name: Pi-Heif sdist and wheels
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           path: wheelhouse_pi_heif
           pattern: wheels_pi_heif-*