Log Message:
isl: update to 0.26.

version: 0.26
date: Sat Apr  1 05:10:53 PM CEST 2023
changes:
	- fix inherited overloaded methods in Python bindings
	- decompose topological sort of clusters in incremental scheduler
	- improved isl_pw_aff_list_{min,max}
	- add some convenience functions
	- more exports to (templated C++) bindings
	- slightly improved conversion from binary relation to function
---
version: 0.25
date: Sat 02 Jul 2022 11:14:57 AM CEST
changes:
	- support (type safe) user object on id in bindings
	- more exports to (templated C++) bindings
	- add some convenience functions