Fix completion issue on node-type in create deployment

[remyleone]

Command attempted

scw inference deployment create model-name=deepseek/deepseek-r1-distill-llama-8b:bf16 node-type=

When attempting to perform a completion here. I get a fail.

Expected Behavior

I should have completion on the valid node-type

Actual Behavior

interface conversion: interface {} is *inference.llmInferenceCreateDeploymentRequestCustom, not *inference.CreateDeploymentRequest

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