upgrade to orchestrato-core v2

gso/api/v1/imports.py

 """:term:`GSO` :term:`API` endpoints that import different types of existing services."""
 
 import ipaddress
-from typing import Any
+from typing import Any, Self
 from uuid import UUID
 
 from fastapi import Depends, HTTPException, status
 from fastapi.routing import APIRouter
 from orchestrator.services import processes
-from pydantic import BaseModel, root_validator, validator
+from pydantic import BaseModel, field_validator, model_validator
 
 from gso.auth.security import opa_security_default
 from gso.products.product_blocks.iptrunk import IptrunkType, PhysicalPortCapacity
@@ -87,7 +87,7 @@ class IptrunkImportModel(BaseModel):
             for router in subscriptions.get_active_router_subscriptions(includes=["subscription_id"])
         }
 
-    @validator("partner")
+    @field_validator("partner")
     def check_if_partner_exists(cls, value: str) -> str:
         """Validate that the partner exists."""
         try:
@@ -98,7 +98,7 @@ class IptrunkImportModel(BaseModel):
 
         return value
 
-    @validator("side_a_node_id", "side_b_node_id")
+    @field_validator("side_a_node_id", "side_b_node_id")
     def check_if_router_side_is_available(cls, value: str) -> str:
         """Both sides of the trunk must exist in :term:`GSO`."""
         if value not in cls._get_active_routers():
@@ -107,7 +107,7 @@ class IptrunkImportModel(BaseModel):
 
         return value
 
-    @validator("side_a_ae_members", "side_b_ae_members")
+    @field_validator("side_a_ae_members", "side_b_ae_members")
     def check_side_uniqueness(cls, value: list[str]) -> list[str]:
         """:term:`LAG` members must be unique."""
         if len(value) != len(set(value)):
@@ -116,25 +116,21 @@ class IptrunkImportModel(BaseModel):
 
         return value
 
-    @root_validator
-    def check_members(cls, values: dict[str, Any]) -> dict[str, Any]:
+    @model_validator(mode="after")
+    def check_members(self) -> Self:
         """Amount of :term:`LAG` members has to match on side A and B, and meet the minimum requirement."""
-        min_links = values["iptrunk_minimum_links"]
-        side_a_members = values.get("side_a_ae_members", [])
-        side_b_members = values.get("side_b_ae_members", [])
+        len_a = len(self.side_a_ae_members)
+        len_b = len(self.side_b_ae_members)
 
-        len_a = len(side_a_members)
-        len_b = len(side_b_members)
-
-        if len_a < min_links:
-            msg = f"Side A members should be at least {min_links} (iptrunk_minimum_links)"
+        if len_a < self.iptrunk_minimum_links:
+            msg = f"Side A members should be at least {self.iptrunk_minimum_links} (iptrunk_minimum_links)"
             raise ValueError(msg)
 
         if len_a != len_b:
             msg = "Mismatch between Side A and B members"
             raise ValueError(msg)
 
-        return values
+        return self
 
 
 class SuperPopSwitchImportModel(BaseModel):