Authorization: Bearer ********************curl --location --request PUT 'https://api-lms.staging.teach-in.ru/api/admin/testing-system/test-program/test-programs/bd109804-81d9-457d-aeb9-3c4cb773c5f3/add-author' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"author_id": "1d405805-8905-4712-a84f-80e39462948b"
}'[
null
]