Fix Claude Sonnet 4 model ID (#31505)

This PR is a follow-up to
https://github.com/zed-industries/zed/pull/31415 that fixes the model ID
for Claude Sonnet 4.

With the release of the Claude 4 models, the model version now appears
at the end.

Release Notes:

- N/A
a8ca7e9c04Marshall Bowers committed on 5/27/2025, 1:10:29 PM· committed by GitHubparentee6ce78
5 files changedLine totals unavailable