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

Ref: PACT-445

Author: pactflow-renovate-bot[bot]

.github/workflows/playwright.yml

@@ -18,7 +18,7 @@ jobs:
       run: npx playwright install --with-deps
     - name: Run Playwright tests
       run: npx playwright test
-    - uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v5
+    - uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6
       if: always()
       with:
         name: playwright-report