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

Author: renovate[bot]

.github/workflows/.tests.yml

@@ -71,7 +71,7 @@ jobs:
         run: |
           npx playwright test --project="${{ matrix.project }}" --reporter=html
 
-      - uses: actions/upload-artifact@v6
+      - uses: actions/upload-artifact@v7
         if: (! cancelled())
         name: upload results
         with: