Update upload-artifact action to v4 in E2E workflow

Fixes #230

Update the version of `actions/upload-artifact` in the E2E workflow file.

* Change the version of `actions/upload-artifact` from `v2` to `v4` in `.github/workflows/e2e.yml`.

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Author: dtinth

.github/workflows/e2e.yml

@@ -18,7 +18,7 @@ jobs:
         run: cd automation/e2e && npx playwright install --with-deps
       - name: Run Playwright tests
         run: cd automation/e2e && yarn playwright test
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         if: always()
         with:
           name: playwright-report