make iptrunk product block use the PhyPortCapacity enum

gso/products/product_blocks/iptrunk.py

@@ -8,6 +8,7 @@ from orchestrator.forms.validators import UniqueConstrainedList
 from orchestrator.types import SubscriptionLifecycle, strEnum
 from pydantic import Field
 
+from gso.products.product_blocks import PhyPortCapacity
 from gso.products.product_blocks.router import RouterBlock, RouterBlockInactive, RouterBlockProvisioning
 
 
@@ -58,7 +59,7 @@ class IptrunkBlockInactive(
     geant_s_sid: str | None = None
     iptrunk_description: str | None = None
     iptrunk_type: IptrunkType | None = None
-    iptrunk_speed: str | None = None
+    iptrunk_speed: PhyPortCapacity | None = None
     iptrunk_minimum_links: int | None = None
     iptrunk_isis_metric: int | None = None
     iptrunk_ipv4_network: ipaddress.IPv4Network | None = None
@@ -73,7 +74,7 @@ class IptrunkBlockProvisioning(IptrunkBlockInactive, lifecycle=[SubscriptionLife
     geant_s_sid: str | None = None
     iptrunk_description: str | None = None
     iptrunk_type: IptrunkType | None = None
-    iptrunk_speed: str | None = None
+    iptrunk_speed: PhyPortCapacity | None = None
     iptrunk_minimum_links: int | None = None
     iptrunk_isis_metric: int | None = None
     iptrunk_ipv4_network: ipaddress.IPv4Network | None = None
@@ -92,7 +93,7 @@ class IptrunkBlock(IptrunkBlockProvisioning, lifecycle=[SubscriptionLifecycle.AC
     #:  The type of trunk, can be either dark fibre or leased capacity.
     iptrunk_type: IptrunkType
     #:  The speed of the trunk, measured per interface associated with it.
-    iptrunk_speed: str  # FIXME: should be of PhyPortCapacity type
+    iptrunk_speed: PhyPortCapacity
     #:  The minimum amount of links the trunk should consist of.
     iptrunk_minimum_links: int
     #:  The :term:`IS-IS` metric of this link