Bump actions/download-artifact from 5 to 6 (#81)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/release-wheels.yml

@@ -239,7 +239,7 @@ jobs:
   #       python-version: ${{ matrix.python-version }}
   #
   #   - name: Download the wheels
-  #     uses: actions/download-artifact@v5
+  #     uses: actions/download-artifact@v6
   #     with:
   #       path: dist/
   #       merge-multiple: true
@@ -287,7 +287,7 @@ jobs:
 
     steps:
     - name: Download the wheels
-      uses: actions/download-artifact@v5
+      uses: actions/download-artifact@v6
       with:
         path: dist/
         merge-multiple: true