Fix type annotation in L2Circuit creation WF

gso/workflows/l2_circuit/create_layer_2_circuit.py

@@ -48,7 +48,7 @@ def initial_input_generator(product_name: str) -> FormGenerator:
         )
         vlan_id: VLAN_ID
 
-    def _vlan_range_field(*, is_tagged: bool) -> VLAN_ID:
+    def _vlan_range_field(*, is_tagged: bool) -> VLAN_ID | int:
         """Return the appropriate field type based on whether the circuit is tagged."""
         return VLAN_ID if is_tagged else ReadOnlyField(None, default_type=int)