update upload-artifact version from 3 to 4

Author: jmythms

.github/workflows/integration_tests.yml

@@ -64,7 +64,7 @@ jobs:
           fi
           mv ./results/*.json ./tests/integration_testing/results/
       - name: Upload artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: results
           path: ./tests/integration_testing/results/