sphinx: role 'arxiv' is already registered

[sciunto]

Description

in main,

Warning, treated as error:
role 'arxiv' is already registered, it will be overridden
make[1]: *** [Makefile:58: html] Error 2
make[1]: Leaving directory '/home/runner/work/scikit-image/scikit-image/doc'

[sciunto]

To me, this is related to

scikit-image/doc/ext/doi_role.py

Line 33 in 5ed9bd6

def arxiv_role(typ, rawtext, text, lineno, inliner, options={}, content=[]):

but I don't see a related change in sphinx changes...

[sciunto]

Fix: scipy/scipy@3817289