Introduce gepa_kwargs for passing custom kwargs to gepa.optimize

[LakshyAAAgrawal]

Added gepa_kwargs parameter for additional GEPA options.

[Copilot]

Pull Request Overview

This PR introduces a new gepa_kwargs parameter to allow passing custom kwargs to the GEPA optimize method, providing more flexibility in optimization configuration. It also updates the GEPA dependency version from 0.0.12 to 0.0.16.

• Added gepa_kwargs parameter to the GEPA optimizer initialization and method signature
• Updated GEPA dependency version to 0.0.16
• Added documentation for the new parameter

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
pyproject.toml	Updates GEPA dependency version to 0.0.16
dspy/teleprompt/gepa/gepa.py	Adds gepa_kwargs parameter to constructor and passes it to gepa.optimize

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