feat(deepinfra): update model YAMLs [bot]

[harshiv-26]

Auto-generated by poc-agent for provider deepinfra.

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Note

Low Risk
Low risk: updates a single provider model YAML (pricing and declared capabilities) with no code/runtime logic changes. Main impact is potential downstream behavior if tooling relies on the removed feature flags.

Overview
Updates DeepInfra Qwen3.5-122B-A10B metadata by lowering output_cost_per_token and changing declared capabilities: removes system_messages, tool_choice, and structured_output, and adds json_output.

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[github-actions]

/test-models

[harshiv-26]

Gateway test results

• Total: 8
• Passed: 8
• Failed: 0
• Validation failed: 0
• Errored: 0
• Skipped: 0
• Success rate: 100.0%

Provider	Model	Scenarios
deepinfra	Qwen/Qwen3.5-122B-A10B	success: tool-call:stream, tool-call, params:stream, params, json-output, json-output:stream, reasoning, reasoning:stream