science/py-ipygany: Fix build with python-3.11

PR:		275494
Approved by:	portmgr(blanket, fix build)

science/py-ipygany/files/patch-setup.py

@@ -0,0 +1,20 @@
+--- setup.py.orig	2021-01-25 10:40:44 UTC
++++ setup.py
+@@ -8,7 +8,6 @@ from os import path
+ from glob import glob
+ from os import path
+ 
+-
+ from jupyter_packaging import (
+     create_cmdclass, install_npm, ensure_targets,
+     combine_commands, ensure_python,
+@@ -22,9 +21,6 @@ HERE = path.dirname(path.abspath(__file__))
+ name = 'ipygany'
+ 
+ HERE = path.dirname(path.abspath(__file__))
+-
+-# Ensure a valid python version
+-ensure_python('>=3.6')
+ 
+ # Get our version
+ version = get_version(path.join(name, '_version.py'))