Allow iBGP update on both provisioning and active trunks

Updated unit tests accordingly. iBGP update is allowed only on routers with a provisioning or active trunk, not initial or terminated.

test/workflows/router/test_update_ibgp_mesh.py

@@ -61,7 +61,7 @@ def test_update_ibgp_mesh_failure(iptrunk_subscription_factory, data_config_file
         "subscription_id": ip_trunk.iptrunk.iptrunk_sides[0].iptrunk_side_node.owner_subscription_id
     }
 
-    exception_message = "Selected router does not terminate any active IP trunks."
+    exception_message = "Selected router does not terminate any available IP trunks."
     with pytest.raises(FormValidationError, match=exception_message):
         run_workflow("update_ibgp_mesh", [ibgp_mesh_input_form_data, {}])
 
@@ -70,6 +70,6 @@ def test_update_ibgp_mesh_failure(iptrunk_subscription_factory, data_config_file
 def test_update_ibgp_mesh_isolated_router(nokia_router_subscription_factory, data_config_filename):
     router_id = nokia_router_subscription_factory(router_role=RouterRole.P)
 
-    exception_message = "Selected router does not terminate any active IP trunks."
+    exception_message = "Selected router does not terminate any available IP trunks."
     with pytest.raises(FormValidationError, match=exception_message):
         run_workflow("update_ibgp_mesh", [{"subscription_id": router_id}, {}])