Update util.py
Update util.py

handle 405 for head method
handle 302 for head method
fomars/yandex-tank,f2nd/yandex-tank,f2nd/yandex-tank,nnugumanov/yandex-tank,asekretenko/yandex-tank,nnugumanov/yandex-tank,nettorta/yandex-tank,netortik/yandex-tank,yandex/yandex-tank,netortik/yandex-tank,nettorta/yandex-tank,asekretenko/yandex-tank,yandex/yandex-tank,fomars/yandex-tank