Improvements from NAT-408 and NAT-412.

gso/services/crm.py

gso/services/netbox_client.py

gso/utils/helpers.py

gso/workflows/iptrunk/create_iptrunk.py

gso/workflows/router/create_router.py

gso/workflows/site/create_site.py

test/services/conftest.py

test/services/test_netbox_client.py

test/workflows/iptrunk/test_create_iptrunk.py

test/workflows/iptrunk/test_migrate_iptrunk.py

test/workflows/router/test_create_router.py

test/workflows/site/test_create_site.py