tests: Migrate openai under toxgen

[sentrivana]

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[codecov]

❌ 127 Tests Failed:

Tests completed	Failed	Passed	Skipped
23483	127	23356	5867

View the top 3 failed test(s) by shortest run time

tests.integrations.openai.test_openai test_span_origin_nonstreaming_chat

Stack Traces | 0.064s run time

.../integrations/openai/test_openai.py:525: in test_span_origin_nonstreaming_chat
    client = OpenAI(api_key="z")
.tox/py3.11-openai-notiktoken-v1.51.2/lib/python3.11.../site-packages/openai/_client.py:123: in __init__
    super().__init__(
.tox/py3.11-openai-notiktoken-v1.51.2/lib/python3.11....../site-packages/openai/_base_client.py:856: in __init__
    self._client = http_client or SyncHttpxClientWrapper(
.tox/py3.11-openai-notiktoken-v1.51.2/lib/python3.11....../site-packages/openai/_base_client.py:754: in __init__
    super().__init__(**kwargs)
E   TypeError: Client.__init__() got an unexpected keyword argument 'proxies'

tests.integrations.openai.test_openai test_span_origin_streaming_chat

Stack Traces | 0.064s run time

.../integrations/openai/test_openai.py:568: in test_span_origin_streaming_chat
    client = OpenAI(api_key="z")
.tox/py3.11-openai-notiktoken-v1.51.2/lib/python3.11.../site-packages/openai/_client.py:123: in __init__
    super().__init__(
.tox/py3.11-openai-notiktoken-v1.51.2/lib/python3.11....../site-packages/openai/_base_client.py:856: in __init__
    self._client = http_client or SyncHttpxClientWrapper(
.tox/py3.11-openai-notiktoken-v1.51.2/lib/python3.11....../site-packages/openai/_base_client.py:754: in __init__
    super().__init__(**kwargs)
E   TypeError: Client.__init__() got an unexpected keyword argument 'proxies'

tests.integrations.openai.test_openai test_span_origin_streaming_chat_async

Stack Traces | 0.065s run time

.../integrations/openai/test_openai.py:628: in test_span_origin_streaming_chat_async
    client = AsyncOpenAI(api_key="z")
.tox/py3.11-openai-notiktoken-v1.51.2/lib/python3.11.../site-packages/openai/_client.py:337: in __init__
    super().__init__(
.tox/py3.11-openai-notiktoken-v1.51.2/lib/python3.11....../site-packages/openai/_base_client.py:1437: in __init__
    self._client = http_client or AsyncHttpxClientWrapper(
.tox/py3.11-openai-notiktoken-v1.51.2/lib/python3.11....../site-packages/openai/_base_client.py:1334: in __init__
    super().__init__(**kwargs)
E   TypeError: AsyncClient.__init__() got an unexpected keyword argument 'proxies'

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