fix(ci): retry transient Playwright dependency downloads

.gitea/workflows/ci.yml

@@ -82,7 +82,16 @@ jobs:
       - run: uv run python manage.py bootstrap --username admin --organization CI
         env:
           BOOTSTRAP_PASSWORD: ${{ env.E2E_PASSWORD }}
-      - run: npx playwright install --with-deps chromium
+      - name: Install Playwright Chromium
+        run: |
+          for attempt in 1 2 3; do
+            npx playwright install --with-deps chromium && exit 0
+            if [ "$attempt" -lt 3 ]; then
+              echo "::warning::Playwright 安装第 ${attempt} 次失败，15 秒后重试"
+              sleep 15
+            fi
+          done
+          exit 1
       - name: Browser regression
         shell: bash
         run: |