ci: add urllib3 to e2e test workflow

Author: jy-tan

.github/workflows/e2e.yml

@@ -22,7 +22,7 @@ jobs:
       fail-fast: false
       max-parallel: 6
       matrix:
-        library: [flask, fastapi, django, redis, requests, httpx, psycopg, psycopg2]
+        library: [flask, fastapi, django, redis, requests, httpx, psycopg, psycopg2, urllib3]
     steps:
       - name: Checkout
         uses: actions/checkout@v4