Documentation CI does not work

[Clémentine]

I did not notice it, but it's been weeks the documentation CI does not work anymore, leading to an outdated documentation I guess

I don't think it's complex, but I don't have bandwidth to work on it, so any help (investigation or PR open) is welcome on it ❤️

https://github.com/meilisearch/meilisearch-php/actions/workflows/docs.yml