[FEA] Modeler Integration Tests

[anandhkb]

Similar to cvxpy, add for other modelers like Pyomo etc

[anandhkb]

@Iroy30 @tmckayus @rgsl888prabhu Please advise on status

[rgsl888prabhu]

• Added Jump testing to nightly

[rgsl888prabhu]

Pending

• Pulp

[anandhkb]

Moving to 25.12 for PuLP

[anandhkb]

@iroy do we have PuLP integ tests? We have CVXPY and JUMP.