Feature/trunk migration ipam

Implement the IPAM step in the IP trunk migration workflow.

@neda.moeini if you could also have a look for the sake of code quality, that would be much appreciated (unfortunately I can only assign a single reviewer)

gso/products/product_blocks/iptrunk.py

@@ -47,7 +47,6 @@ class IptrunkInterfaceBlockInactive(
 ):
     """An inactive IP trunk interface."""
 
-    #  TODO: add validation for interface names, making the type a constrained string
     interface_name: str | None = None
     interface_description: str | None = None