Create openai responses api test

[areibman]

📥 Pull Request

📘 Description
Adds a new example o3_responses_example.py to examples/openai. This example demonstrates AgentOps integration with OpenAI's o3 model using the responses API and tool calls, simplified from the original Pokémon battle script to focus on core functionality. The examples/openai/README.md has been updated to include this new example.

🧪 Testing
The example can be run directly via python examples/openai/o3_responses_example.py. It includes agentops.validate_trace_spans to verify AgentOps tracing and span capture for o3 model interactions and tool calls.

[codecov]

Codecov Report

Attention: Patch coverage is 4.26230% with 292 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...instrumentation/providers/openai/stream_wrapper.py	1.73%	170 Missing ⚠️
...rumentation/providers/openai/wrappers/responses.py	6.87%	122 Missing ⚠️

📢 Thoughts on this report? Let us know!