updated composer file to relate to the API
updated composer file to relate to the API

joumak/pipedrive-api-php,timepad/pipedrive-api-php,TTRGroup/pipedrive-api-php,henrikroosmann/pipedrive-api-php,das-peter/pipedrive-api-php,miragomkt/pipedrive-api-php,Cronius/pipedrive-api-php