Snap: Reduce build parallelism
Snap: Reduce build parallelism

Snapcraft dockerized builds seem to have a problem with performing them.

PKRoma/poedit,PKRoma/poedit,nawawi/poedit,vslavik/poedit,alexhenrie/poedit,vslavik/poedit,vslavik/poedit,vslavik/poedit,nawawi/poedit,nawawi/poedit,alexhenrie/poedit,alexhenrie/poedit,PKRoma/poedit,alexhenrie/poedit,vslavik/poedit,nawawi/poedit,nawawi/poedit,PKRoma/poedit,alexhenrie/poedit,PKRoma/poedit