Eventually fix the strange WEBP format issue (works locally, doesn't work in GitHub Actions)

[barseghyanartur]

https://github.com/barseghyanartur/faker-file/actions/runs/3634226891/jobs/6132105765

[barseghyanartur]

It turns out it's a wayland issue (work fine on xorg). Find a way of running GitHub Actions with xorg instead of default wayland.