feat(langchain): update integration to from ai.* to gen_ai.* span attributes

[shellmayr]

• Update span attributes to new OTEL compatible schema

Closes TET-992

[linear]

TET-992 Make existing langchain integration work with agents insights

[codecov]

❌ 15 Tests Failed:

Tests completed	Failed	Passed	Skipped
23942	15	23927	2287

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

tests.integrations.langchain.test_langchain::test_langchain_agent[True-False-False]

Stack Traces | 0.158s run time

.../integrations/langchain/test_langchain.py:195: in test_langchain_agent
    assert "gen_ai.usage.input_tokens" in chat_spans[0]["data"]
E   assert 'gen_ai.usage.input_tokens' in {'thread.id': '139802115025792', 'thread.name': 'MainThread', 'gen_ai.operation.name': 'chat', 'gen_ai.request.model': 'gpt-3.5-turbo', 'gen_ai.system': 'openai', 'gen_ai.request.temperature': 0.0, 'gen_ai.request.available_tools': "[{'type': 'function', 'function': {'name': 'get_word_length', 'description': 'get_word_length(word: str) -> int - Returns the length of a word.', 'parameters': {'type': 'object', 'properties': {'word': {'type': 'string'}}, 'required': ['word']}}}]", 'gen_ai.response.finish_reasons': 'function_call', 'gen_ai.response.tool_calls': "[{'name': 'get_word_length', 'args': {'word': 'eudca'}, 'id': 'call_BbeyNhCKa6kYLYzrD40NGm3b'}]"}

tests.integrations.langchain.test_langchain::test_langchain_agent[False-True-False]

Stack Traces | 0.16s run time

.../integrations/langchain/test_langchain.py:195: in test_langchain_agent
    assert "gen_ai.usage.input_tokens" in chat_spans[0]["data"]
E   assert 'gen_ai.usage.input_tokens' in {'thread.id': '139802115025792', 'thread.name': 'MainThread', 'gen_ai.operation.name': 'chat', 'gen_ai.request.model': 'gpt-3.5-turbo', 'gen_ai.system': 'openai', 'gen_ai.request.temperature': 0.0, 'gen_ai.request.available_tools': "[{'type': 'function', 'function': {'name': 'get_word_length', 'description': 'get_word_length(word: str) -> int - Returns the length of a word.', 'parameters': {'type': 'object', 'properties': {'word': {'type': 'string'}}, 'required': ['word']}}}]", 'gen_ai.response.finish_reasons': 'function_call', 'gen_ai.response.tool_calls': "[{'name': 'get_word_length', 'args': {'word': 'eudca'}, 'id': 'call_BbeyNhCKa6kYLYzrD40NGm3b'}]"}

tests.integrations.langchain.test_langchain::test_langchain_agent[False-False-True]

Stack Traces | 0.161s run time

.../integrations/langchain/test_langchain.py:195: in test_langchain_agent
    assert "gen_ai.usage.input_tokens" in chat_spans[0]["data"]
E   assert 'gen_ai.usage.input_tokens' in {'thread.id': '139802115025792', 'thread.name': 'MainThread', 'gen_ai.operation.name': 'chat', 'gen_ai.request.model': 'gpt-3.5-turbo', 'gen_ai.request.temperature': 0.0, 'gen_ai.request.available_tools': "[{'type': 'function', 'function': {'name': 'get_word_length', 'description': 'get_word_length(word: str) -> int - Returns the length of a word.', 'parameters': {'type': 'object', 'properties': {'word': {'type': 'string'}}, 'required': ['word']}}}]", 'gen_ai.response.finish_reasons': 'function_call', 'gen_ai.response.tool_calls': "[{'name': 'get_word_length', 'args': {'word': 'eudca'}, 'id': 'call_BbeyNhCKa6kYLYzrD40NGm3b'}]"}

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