update actions/upload-artifact to v4

Author: fdintino

.github/workflows/test.yml

@@ -96,7 +96,7 @@ jobs:
 
     - name: Upload junit xml
       if: always()
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: junit-reports
         path: reports/*.xml