depend on python-gnupg-ng instead of python-gnupg
depend on python-gnupg-ng instead of python-gnupg

also change the dependencies in setup.py

pixelated-project/pixelated-dispatcher,pixelated-project/pixelated-dispatcher,pixelated-project/pixelated-dispatcher,pixelated/pixelated-dispatcher,pixelated/pixelated-dispatcher,pixelated/pixelated-dispatcher