onboard: move python dependencies to pythonPath

It is deprecated but otherwise wrapPython adds everything that is propagated, including dev outputs, to program_PATH, which ends up in the wrapper.

+1 -1
+1 -1
pkgs/applications/misc/onboard/default.nix
··· 80 80 xorg.libxkbfile 81 81 ] ++ lib.optional atspiSupport at-spi2-core; 82 82 83 - propagatedBuildInputs = with python3.pkgs; [ 83 + pythonPath = with python3.pkgs; [ 84 84 dbus-python 85 85 distutils_extra 86 86 pyatspi