Update build_wheel.yml

Bump upload-artifacts to v4

Author: michaeltryby

.github/workflows/build_wheel.yml

@@ -121,6 +121,6 @@ jobs:
           CIBW_SKIP: cp36-* cp37-* pp* *-musllinux*
           CIBW_BUILD_VERBOSITY: 1
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: ./wheelhouse/*.whl