text: Title: client_session: <aiohttp.client.ClientSession object at 0x7f3307f050d0>
  Body: hello, when i run clairvoyance on some targets like this (https://ctm-cssit-ps3-dmz.us.dell.com/) i got and error, how can i fix it ?
  error :
  
  root@aliwjpi:# clairvoyance "https://ctm-cssit-ps3-dmz.us.dell.com/graphql" -o schema.json -c 1 
  2023-04-21 05:12:24     INFO    | Starting blind introspection on https://ctm-cssit-ps3-dmz.us.dell.com/graphql...
  2023-04-21 05:12:24     INFO    | Iteration 1
  Traceback (most recent call last):
    File "/usr/local/bin/clairvoyance", line 8, in <module>
      sys.exit(cli())
    File "/usr/local/lib/python3.8/dist-packages/clairvoyance/cli.py", line 142, in cli
      asyncio.run(
    File "/usr/lib/python3.8/asyncio/runners.py", line 44, in run
      return loop.run_until_complete(main)
    File "/usr/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
      return future.result()
    File "/usr/local/lib/python3.8/dist-packages/clairvoyance/cli.py", line 89, in blind_introspection
      schema = await oracle.clairvoyance(
    File "/usr/local/lib/python3.8/dist-packages/clairvoyance/oracle.py", line 568, in clairvoyance
      typename = await probe_typename(input_document)
    File "/usr/local/lib/python3.8/dist-packages/clairvoyance/oracle.py", line 487, in probe_typename
      return (match.group('typename').replace('[', '').replace(']', '').replace('!', ''))
  AttributeError: 'NoneType' object has no attribute 'group'
  2023-04-21 05:12:25     ERROR   | Unclosed client session
  client_session: <aiohttp.client.ClientSession object at 0x7f651f7840d0>
  