change tarball url (pypi to gitlab)
change tarball url (pypi to gitlab)

The .egg-info folder present in the tarball on pypi
seems to cause an error when building the package.
This is a workaround, but in next release we should change
the url back to pypi and ensure that this folder won't be
included, e.g., by using `git clean -xfd` on a specific
clone of the repository that is not used for local development
before uploading to pypi.

conda-forge/staged-recipes,asmeurer/staged-recipes,SylvainCorlay/staged-recipes,scopatz/staged-recipes,barkls/staged-recipes,guillochon/staged-recipes,cpaulik/staged-recipes,sodre/staged-recipes,glemaitre/staged-recipes,sannykr/staged-recipes,chrisburr/staged-recipes,stuertz/staged-recipes,petrushy/staged-recipes,grlee77/staged-recipes,ocefpaf/staged-recipes,pmlandwehr/staged-recipes,igortg/staged-recipes,NOAA-ORR-ERD/staged-recipes,goanpeca/staged-recipes,rmcgibbo/staged-recipes,johanneskoester/staged-recipes,synapticarbors/staged-recipes,igortg/staged-recipes,shadowwalkersb/staged-recipes,mcs07/staged-recipes,kwilcox/staged-recipes,isuruf/staged-recipes,ceholden/staged-recipes,hadim/staged-recipes,sannykr/staged-recipes,hadim/staged-recipes,patricksnape/staged-recipes,patricksnape/staged-recipes,dschreij/staged-recipes,ceholden/staged-recipes,mariusvniekerk/staged-recipes,barkls/staged-recipes,chohner/staged-recipes,jakirkham/staged-recipes,Cashalow/staged-recipes,koverholt/staged-recipes,sodre/staged-recipes,Juanlu001/staged-recipes,jochym/staged-recipes,shadowwalkersb/staged-recipes,ReimarBauer/staged-recipes,pmlandwehr/staged-recipes,chohner/staged-recipes,NOAA-ORR-ERD/staged-recipes,chrisburr/staged-recipes,jjhelmus/staged-recipes,isuruf/staged-recipes,rvalieris/staged-recipes,scopatz/staged-recipes,larray-project/staged-recipes,jakirkham/staged-recipes,grlee77/staged-recipes,glemaitre/staged-recipes,koverholt/staged-recipes,mariusvniekerk/staged-recipes,stuertz/staged-recipes,birdsarah/staged-recipes,SylvainCorlay/staged-recipes,rmcgibbo/staged-recipes,basnijholt/staged-recipes,kwilcox/staged-recipes,rvalieris/staged-recipes,conda-forge/staged-recipes,ocefpaf/staged-recipes,johanneskoester/staged-recipes,ReimarBauer/staged-recipes,sodre/staged-recipes,guillochon/staged-recipes,larray-project/staged-recipes,Juanlu001/staged-recipes,basnijholt/staged-recipes,jochym/staged-recipes,goanpeca/staged-recipes,jjhelmus/staged-recipes,cpaulik/staged-recipes,synapticarbors/staged-recipes,birdsarah/staged-recipes,dschreij/staged-recipes,asmeurer/staged-recipes,mcs07/staged-recipes,Cashalow/staged-recipes,petrushy/staged-recipes