Add `use_schema_label` as a parameter for `model/submit` endpoint

[linglp]

Is your feature request related to a problem? Please describe.
Add use_schema_label as a parameter for model/submit endpoint

Describe the solution you'd like
Add use_schema_label as a parameter for model/submit endpoint and update relevant tests

How important is this feature? Select from the options below:
• 🌗 Medium - can do work without it; but it's important (e.g. to save time or for convenience)

When will use cases depending on this become relevant? Select from the options below:
• Short-term - 2-4 weeks

Additional context
Add any other context or screenshots about the feature request here.