enforce_eager=True not being respected in test scripts

Problem

When running test scripts with enforce_eager=True specified, the logs still show enforce_eager=False and CUDA graphs are being calculated. This makes startup slower and leads to a slower feedback cycle during testing.

Reproduction

In the test script src/art/test/test_step_skipping.py, we're passing enforce_eager=True:

# Register the model
await model.register(
    backend,
    _openai_client_config={"engine_args": {"enforce_eager": True}},
)

However, when running the script, the logs show that enforce_eager is still False and CUDA graphs are being compiled.

Expected Behavior

When enforce_eager=True is passed in the configuration, it should:

1. Skip CUDA graph compilation
2. Start up faster
3. Provide quicker feedback during testing

Impact

This issue affects development velocity as tests take longer to start and provide feedback than necessary.

Environment

• The issue can be reproduced by running: ./src/art/test/test_step_skipping.py
• The script is configured to run on GPU with sky launch