Update upload-artifact action

Author: LaurentRDC

.github/workflows/ci.yml

@@ -73,7 +73,7 @@ jobs:
         python setup.py sdist bdist_wheel
 
     - name: Upload artifact
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       with:
         name: ${{ runner.os }}-py${{ matrix.python-version }}-artifact
         path: dist/*
@@ -120,4 +120,4 @@ jobs:
       uses: pypa/gh-action-pypi-publish@release/v1
       with:
         user: __token__
-        password: ${{ secrets.PYPI_API_TOKEN }}
+        password: ${{ secrets.PYPI_API_TOKEN }}