Feature/lan switch interconnect

Update Switch product, add LAN Switch interconnect product and add workflows with unit tests accordingly

gso/workflows/router/modify_kentik_license.py

@@ -33,7 +33,7 @@ def _initial_input_form(subscription_id: UUIDstr) -> FormGenerator:
     )
 
     class ModifyKentikLicenseForm(FormPage):
-        new_plan_id: available_kentik_plans  # type: ignore[valid-type]
+        new_plan_id: available_kentik_plans or str  # type: ignore[valid-type]
 
         @model_validator(mode="before")
         def router_must_be_nokia_p(cls, data: Any) -> Any: