CompatHelper: bump compat for ModelingToolkit to 9, (keep existing compat)#35

ChrisRackauckas merged 1 commit intomainSciML/ModelingToolkitCourse:mainfrom

compathelper/new_version/2024-02-22-07-05-21-133-01396170867SciML/ModelingToolkitCourse:compathelper/new_version/2024-02-22-07-05-21-133-01396170867Copy head branch name to clipboard