feat: test e2e install

Author: xiaoyu2er

.github/workflows/test-e2e.yml

@@ -39,5 +39,6 @@ jobs:
 
       - name: Run E2E Tests
         run: |
+          pnpm --filter @next-i18n/docs playwright:install
           echo "Running tests for ${{ matrix.locale }} (Shard ${{ matrix.shard }}/${{ inputs.shard-total }})"
           pnpm --filter @next-i18n/docs test:e2e --shard ${{ matrix.shard }}/${{ inputs.shard-total }}