`ResponseFunctionToolCallParam.id` should be optional

[Shulyaka]

Confirm this is an issue with the Python library and not an underlying OpenAI API

• [x] This is an issue with the Python library

Describe the bug

The ResponseFunctionToolCallParam.id is annotated as Required[str], while according to the specs it should be optional: I haven't tested it without the id yet but we already have one id of the function call tool, which is call_id.

To Reproduce

N/A

Code snippets

OS

Linux

Python version

3.13.2

Library version

1.66.3