dune-py module version

In python/dune/common/module.py the version number for the dune-py module is hard coded which can lead to mistakes (see discussion in !790 (merged) open by @tkoch A solution would be to use the version number of the dune-common module and add an additional token to allow for changes in structure of the dune-py module

The following discussion from !790 (merged) should be addressed:

• @tkoch started a discussion: (+2 comments)

  can this be automatically obtained from somewhere like dune.module? Seems like something easily forgot for a release.