feat(responses): add ComputerCallOutput to response input parameters

[prdai]

This PR introduces an alias import for ComputerCallOutput in the openai.types.responses module by importing it from the response_input_param module. This change provides a unified and accessible entry point via the package’s __init__.py.

Context

Some users have encountered the following error when attempting to import ComputerCallOutput from openai.types.responses:

ImportError: cannot import name 'ComputerCallOutput' from 'openai.types.responses'

This issue is tracked in [GitHub issue #2231](https://github.com/openai/openai-python/issues/2231).

Changes

• Added an alias import in __init__.py of the openai.types.responses module:

  from .response_input_param import ComputerCallOutput as ComputerCallOutput
  

• (Note: The duplicate definition of ComputerCallOutput in src/openai/types/responses/response_input_item_param.py remains unchanged for now.)