Some systems (e.g. Ubuntu 22.04, which we use to make the AppImage),
have ancient versions of meson and ninja, which is not good when we
have dependencies like PyGObject 3.47+ (and more recently, one of its
transitive dependencies, pycairo 1.27+) requiring a fairly recent
version of meson to be able to be built.
So, instead of relying on whatever meson/ninja version the current
system provides us with to make the AppImage, this change will simply
install up-to-date, official wheels of meson/ninja directly from PyPI.
This also allows us to finally unpin PyGObject's version.
guihkx
49e8db9e22
