v9.69.0

ModelingToolkit v9.69.0

Diff since v9.68.1

Merged pull requests:

• fix: fix incorrect folding in substitute in OptimizationSystem (#3475) (@AayushSabharwal)
• feat: support alternative AD backends in linearization (#3477) (@AayushSabharwal)
• fix: fix callable parameters in remake_buffer (#3492) (@AayushSabharwal)
• Fix ODEProblem over JumpProblem when there are no ODEs (#3496) (@isaacsas)

Closed issues:

• Clocks TODO (#1939)
• Creating of OptimizationSystem with registered function traces (#3473)
• Cannot use remake with callable parameters (#3490)