Remove model name check for REST models

[rmitsch]

Description

• Remove model name check for REST models
• Add new OpenAI registry functions for GPT-3.5 and GPT-4 without restrictions for model names.

Closes #351. Note that new, Literal-less registry functions for other REST models still have to be added.

Corresponding documentation PR

explosion/spaCy#13119

Types of change

Enhancement.

Checklist

• I confirm that I have the right to submit this contribution under the project's MIT license.
• I ran all tests in tests and usage_examples/tests, and all new and existing tests passed. This includes
  • all external tests (i. e. pytest ran with --external)
  • all tests requiring a GPU (i. e. pytest ran with --gpu)
• My changes don't require a change to the documentation, or if they do, I've added all required information.

[svlandeg]

Looks good to me - thanks for the quick turnover!

I cancelled the external tests because 1) OpenAI API is down and 2) the tests don't actually cover the new model names, right? I guess that would be overkill, to test every combination.

Nevertheless, I'd like us to hold off a bit on merging. If OpenAI's API comes back online, I'd like to just do a quick test locally.

[rmitsch]

I cancelled the external tests because 1) OpenAI API is down and 2) the tests don't actually cover the new model names, right? I guess that would be overkill, to test every combination.

Yes, that applies to some older models as well. We are at a point where we don't test every model. We should discuss whether that's still something we want to do. If so, we should implement the smallest possible smoke test and parallelize them as much as possible.
I tested the new models locally and they work.

[svlandeg]

Few small suggestions.