Update wheels.yml

Author: RoryBarnes

.github/workflows/wheels.yml

@@ -75,7 +75,7 @@ jobs:
     needs: [build_wheels, build_sdist]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: artifact
           path: dist