5234: Parse ollama URL to adapt configuration depending on the endpoint r=Kerollmops a=dureuill
# Pull Request
## Related issue
Fixes#5002
## What does this PR do?
- Parses `url` parameter of `ollama` to recognize supported endpoint and adapt the REST configuration to the recognized endpoint
- Throws a new error if no endpoint is recognized
- Add a test for the various recognized endpoints
Thanks to `@Guikingone` for the original report and PR
Co-authored-by: Louis Dureuil <louis@meilisearch.com>
