Please remove juju alias from conjure-up

Currently, with conjure-up having the top level juju alias you can not install both conjure-up and juju alongside each other.

Without that ability we need to remove the automatic aliasing of our bundled juju. We’ve already updated our snapcraft.yaml however I think something on the store side needs to be done.

I’ve removed the alias from the snap-declaration, you should be all set.