Update to 1.2.0
pristine-tar branch: https://source.puri.sm/sebastian.krzyszkowiak/libhandy-1/-/tree/pristine-tar
I needed 1.2.0 in order to test confy (it crashes on 1.1.90), and figured out that the easiest way to do that is to update the package, so there it is.
@guido.gunther: are you ok with it or would you rather push it to experimental first?