support urllib3 v1.x

Signed-off-by: ふぁ <yuki@yuki0311.com>

Author: fa0311

twitter_openapi_python/twitter_openapi_python/client.py

@@ -110,8 +110,8 @@ def get_twitter_openapi_python_client(
         api: twitter.ApiClient,
     ) -> TwitterOpenapiPythonClient:
         http = urllib3.PoolManager()
-        flag = http.request("GET", self.placeholder_url.format(hash=self.hash)).json()
-        return TwitterOpenapiPythonClient(api, flag)
+        flag = http.request("GET", self.placeholder_url.format(hash=self.hash))
+        return TwitterOpenapiPythonClient(api, json.loads(flag.data))
 
     def get_client_from_cookies(
         self,