CI: add wasm job
Suggested on IRC by @jamrial, this would've avoided the regression that was fixed in !1491 (merged).
See e.g., https://code.videolan.org/videolan/vlc/-/blob/master/extras/ci/gitlab-ci.yml#L575
Suggested on IRC by @jamrial, this would've avoided the regression that was fixed in !1491 (merged).
See e.g., https://code.videolan.org/videolan/vlc/-/blob/master/extras/ci/gitlab-ci.yml#L575
VideoLAN code repository instance