build: Define test dependencies

build: Define test dependencies

Ideally meson tests should just work without any pre-requisite build,
instead, we only need a configured build folder to work, but this does
not go as expected in gnome shell at the moment.

Since tests require generated files and compiled typelibs they don't
depend on, so just using `meson test -C build <test-name>` does not work
as expected.

So add test dependencies on test cases. We do not need to have per-test
dependencies right now since most of them share just the same
requirements, and this makes it easier to maintain

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3869>