fix/up upload-artifact version

Author: yannrichet-asnr

.github/workflows/examples.yml

@@ -46,7 +46,8 @@ jobs:
       shell: bash
 #    - run: python3 -c "import Funz; Funz.stopCalculators(calcs)" >> Calcs.out
 #      shell: bash
-    - uses: actions/upload-artifact@v2
+    - uses: actions/upload-artifact@v4
       if: ${{ always() }}
       with:
+        name: artifact-${{ matrix.os }}
         path: ./${{matrix.os}}-*