Add support both for the status and for parsing the header to override the request delay if exponential backoff is less can the Retry-After header.
Also, the backoff should always be max of running try's delay and the max delay set by all running async processes. When a requests succeeds, it should be reset to 0.
Appearantly, sometimes BGG API can return 429.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/429
Add support both for the status and for parsing the header to override the request delay if exponential backoff is less can the Retry-After header.
Also, the backoff should always be max of running try's delay and the max delay set by all running async processes. When a requests succeeds, it should be reset to 0.