Skip IP trunk validation for trunks that are Juniper on both sides

Also updated unit tests

gso/workflows/iptrunk/validate_iptrunk.py

@@ -195,7 +195,7 @@ def validate_iptrunk() -> StepList:
 
     If a trunk has a Juniper router on both sides, it is considered legacy and does not require validation.
     """
-    is_legacy_trunk = conditional(
+    skip_legacy_trunks = conditional(
         lambda state: all(
             side.iptrunk_side_node.vendor == Vendor.JUNIPER
             for side in Iptrunk.from_subscription(state["subscription_id"]).iptrunk.iptrunk_sides
@@ -205,7 +205,7 @@ def validate_iptrunk() -> StepList:
     return (
         begin
         >> store_process_subscription(Target.SYSTEM)
-        >> is_legacy_trunk(done)
+        >> skip_legacy_trunks(done)
         >> unsync
         >> verify_ipam_records
         >> verify_netbox_entries