text: Title: Make OpenAI provider compatible with `openai>=1.66.0`
  Body: ### Body
  
  OpenAI provider Tests are failing with:
  
  ```
  ___ ERROR collecting providers/openai/tests/unit/openai/hooks/test_openai.py ___
  ImportError while importing test module '/opt/airflow/providers/openai/tests/unit/openai/hooks/test_openai.py'.
  Hint: make sure your test modules/packages have valid Python names.
  Traceback:
  /usr/local/lib/python3.9/importlib/__init__.py:127: in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
  providers/openai/tests/unit/openai/hooks/test_openai.py:25: in <module>
      from openai.types.beta import (
  E   ImportError: cannot import name 'VectorStore' from 'openai.types.beta' (/usr/local/lib/python3.9/site-packages/openai/types/beta/__init__.py
  ```
  
  This is due to https://github.com/openai/openai-python/pull/2175
  
  ### Committer
  
  - [x] I acknowledge that I am a maintainer/committer of the Apache Airflow project.