Add open ai agents sdk plugin to enable temporal support

[danielmillerp]

Add open ai agents sdk plugin to enable temporal support

These are added both for the worker and for the start of the workflow per the documentation:
https://github.com/temporalio/sdk-python/tree/main/temporalio/contrib/openai_agents

Testing:

Tested Open AI Agents with Temporal by creating an agent locally and changing SDK source code locally to what is in PR. Correct behavior as far as automatically wrapping Open AI Agents calls as activities and allow for tool use as well as creating activities out of tools.

Tested without using OpenAi agents and not using plugins to make sure change does not break existing behavior and worked fine as well. Also done locally.

[Copilot]

Pull Request Overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 5 comments.

Comments suppressed due to low confidence (1)

src/agentex/lib/core/temporal/workers/worker.py:97

• The plugins parameter is missing from the Client.connect call in the else branch when metrics_url is provided. This will cause plugins to be ignored when metrics are enabled.

        runtime = Runtime(
            telemetry=TelemetryConfig(metrics=OpenTelemetryConfig(url=metrics_url))
        )
        client = await Client.connect(
            target_host=temporal_address,
            data_converter=custom_data_converter,
            runtime=runtime,
        )

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}