This is useful to check that a build didn't result in changes in the
code/generated files
This will be used to check that the plugins documentation cache file is
properly commited, and that necessary workaround for particular case
are adopted.
Don't assume that meson is always a python script, on Windows it can
be (and soon will almost always be) an executable.
See: Meson MSI installer and https://github.com/mesonbuild/meson/pull/4004