Merge pull request #4 from PowerGridModel/dependabot/github_actions/actions/upload-artifact-4

Bump actions/upload-artifact from 3 to 4

Author: mgovers

.github/workflows/main.yml

@@ -61,7 +61,7 @@ jobs:
         pytest
 
     - name: Keep Wheel file
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: wheelhouse
         path: ./wheelhouse/*.whl