chore(deps): update actions/upload-artifact action to v7

Author: renovate[bot]

.github/workflows/testing.yml

@@ -52,7 +52,7 @@ jobs:
 
       - name: Run coverage report
         run: yarn coverage
-      - uses: actions/upload-artifact@v6
+      - uses: actions/upload-artifact@v7
         with:
           name: coverage-data-${{ github.run_id }}
           path: |