Bumped supported Jellyfin openapi spec to version to [10.9.3](https://api.jellyfin.org/openapi/stable/jellyfin-openapi-10.9.3.json).
For more information, take a look at [the Jellyfin server release notes](https://github.com/jellyfin/jellyfin/releases/tag/v10.9.3)
This release is the first to be automatically deployed to pypi via a Github action, as suggested by Aerion.