Rename role -> role_name, add InsufficientPermissionsError#1459

tsmith023 merged 2 commits intodev/1.28weaviate/weaviate-python-client:dev/1.28from

1.28/respond-to-rbac-surface-feedbackweaviate/weaviate-python-client:1.28/respond-to-rbac-surface-feedbackCopy head branch name to clipboard