Pydantic2 PR fix (#2421)

Co-authored-by: Fangchen Li <fangchen.li@outlook.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Amit Kumar <dtu.amit@gmail.com>

src/_nebari/stages/infrastructure/__init__.py

@@ -91,10 +91,10 @@ class GCPInputVars(schema.Base):
     release_channel: str
     networking_mode: str
     network: str
-    subnetwork: str = None
-    ip_allocation_policy: Dict[str, str] = None
-    master_authorized_networks_config: Dict[str, str] = None
-    private_cluster_config: GCPPrivateClusterConfig = None
+    subnetwork: Optional[str] = None
+    ip_allocation_policy: Optional[Dict[str, str]] = None
+    master_authorized_networks_config: Optional[Dict[str, str]] = None
+    private_cluster_config: Optional[GCPPrivateClusterConfig] = None
 
 
 class AzureNodeGroupInputVars(schema.Base):
@@ -112,11 +112,11 @@ class AzureInputVars(schema.Base):
     node_groups: Dict[str, AzureNodeGroupInputVars]
     resource_group_name: str
     node_resource_group_name: str
-    vnet_subnet_id: str = None
+    vnet_subnet_id: Optional[str] = None
     private_cluster_enabled: bool
     tags: Dict[str, str] = {}
-    max_pods: int = None
-    network_profile: Dict[str, str] = None
+    max_pods: Optional[int] = None
+    network_profile: Optional[Dict[str, str]] = None
 
 
 class AWSNodeGroupInputVars(schema.Base):
@@ -133,8 +133,8 @@ class AWSNodeGroupInputVars(schema.Base):
 class AWSInputVars(schema.Base):
     name: str
     environment: str
-    existing_security_group_id: str = None
-    existing_subnet_ids: List[str] = None
+    existing_security_group_id: Optional[str] = None
+    existing_subnet_ids: Optional[List[str]] = None
     region: str
     kubernetes_version: str
     node_groups: List[AWSNodeGroupInputVars]