Authorization: Bearer ********************curl --location --request PUT 'https://api-lms.staging.teach-in.ru/api/testing-system/testing/test-members/b086b76b-c27a-40d1-824d-1959d82372e5/unmark-main-answer' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"attempt_id":"d7afef5e-d29c-4688-9a43-e6f128978537",
"question_id":"5d0cd092-61fa-4d9b-9697-ef6b81ee8574"
}'