fix ci

Author: benthecarman

.github/workflows/code_coverage.yml

@@ -53,7 +53,7 @@ jobs:
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
       - name: Upload artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: coverage-report
           path: coverage-report.html