Reverting to actions/upload-artifact@v3

Author: sveinbjornt

.github/workflows/wheels.yml

@@ -39,6 +39,6 @@ jobs:
           CIBW_BUILD_FRONTEND: "build"
           # CIBW_PROJECT_REQUIRES_PYTHON: ">=3.9"
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v3
         with:
           path: ./wheelhouse/*.whl