Add OpenAI models from Jan 25th

[philippzagar]

What

Update the OpenAI library with the newest released OpenAI models from January 25th.
Most importantly, the PR introduces support for the gpt-4-turbo-preview (alias for gpt-4-0125-preview) and gpt-3.5-turbo-0125 (aliased by gpt-3.5-turbo) models.

Why

Developers are now able to use the newest models within their applications.

Affected Areas

Only minor adjustments within the Model.swift file, as well as the README.

[philippzagar]

@Krivoblotsky @ingvarus-bc @SunburstEnzo Would be great to get this out quickly so that people can start using the new models, the PR contains only minor code changes 🚀

[ingvarus-bc]

Hi, @philippzagar, thanks for your PR!
It seems like moderations model has been changed and now tests for it are failing. Perhaps changes to moderations from this PR could fix it? 🤔

UPD: Found the issue. Just little update to test data is required 😁

[sonarcloud]

Quality Gate passed

The SonarCloud Quality Gate passed, but some issues were introduced.

5 New issues
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[philippzagar]

@ingvarus-bc @SunburstEnzo Please approve the workflow execution once again and then we can merge the PR 🚀

[philippzagar]

@ingvarus-bc Would you mind tagging a new release?

[philippzagar]

@ingvarus-bc @SunburstEnzo As tons of new changes have been merged, would you mind tagging a new release for the library?

[jagilley]

Yes please, +1 on tagging a new release @ingvarus-bc

[philippzagar]

@ingvarus-bc @SunburstEnzo @jagilley Created a new issue to track the new release: #171