chore(deps): update actions/upload-artifact action to v6

Author: renovate[bot]

.github/workflows/playwright.yml

@@ -24,7 +24,7 @@ jobs:
         run: pnpm exec playwright install --with-deps chromium
       - name: Run Playwright tests
         run: pnpm exec playwright test
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         if: always()
         with:
           name: playwright-report