The fix for BZ 2122872 set aggressive defaults for api_service_worker_max_requests to frequently recycle gunicorn workers for pulpcore-api.service

With the root cause of the memory leaks identified and fixed with BZ 2229788, these aggressive defaults are no longer required, so we keep the recycling behavior but increase the value of the api_service_worker_max_requests so that the gunicorn service worker recycling happens less frequently.