feat: use gpu prover

[zkfriendly]

Description

This PR updates the prover integration to use the GPU-based proving service. Key changes:

• Updated relayer-utils dependency to latest main branch
• Added new prover configuration parameters for GPU service integration
• Replaced generate_proof() with generate_proof_gpu()
• Added UUID v4 feature for generating unique proof IDs
• Removed legacy PROVER_ADDRESS in favor of new prover config params

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules