workflows: build-wheels.yml: bump upload-artifact action version to v3

Author: flit

.github/workflows/build-wheels.yml

@@ -53,6 +53,6 @@ jobs:
       - name: Build wheels
         uses: pypa/[email protected]
 
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v3
         with:
           path: ./wheelhouse/*.whl