doc: update link to pylint

doc/dev_setup.rst

@@ -251,4 +251,4 @@ modules from there, use the binaries from :file:`stage/bin`, etc..
 
 
 .. |pylint| replace:: Pylint
-.. _pylint: https://www.pylint.org
+.. _pylint: https://pylint.readthedocs.io/en/stable/