Increase build only job timeouts
Increase build only job timeouts

Jobs such as checked_windows_nt_bld that now build Pri-1 tests
are timing out. Increase BuildOnly timeouts to compensate.

yizhang82/coreclr,yizhang82/coreclr,krk/coreclr,mmitche/coreclr,krk/coreclr,cshung/coreclr,wtgodbe/coreclr,poizan42/coreclr,wtgodbe/coreclr,wtgodbe/coreclr,ruben-ayrapetyan/coreclr,cshung/coreclr,mmitche/coreclr,mmitche/coreclr,cshung/coreclr,mmitche/coreclr,JosephTremoulet/coreclr,cshung/coreclr,JosephTremoulet/coreclr,mmitche/coreclr,wtgodbe/coreclr,JosephTremoulet/coreclr,poizan42/coreclr,ruben-ayrapetyan/coreclr,JosephTremoulet/coreclr,yizhang82/coreclr,cshung/coreclr,JosephTremoulet/coreclr,krk/coreclr,yizhang82/coreclr,ruben-ayrapetyan/coreclr,cshung/coreclr,poizan42/coreclr,poizan42/coreclr,JosephTremoulet/coreclr,poizan42/coreclr,krk/coreclr,yizhang82/coreclr,yizhang82/coreclr,ruben-ayrapetyan/coreclr,wtgodbe/coreclr,krk/coreclr,mmitche/coreclr,poizan42/coreclr,wtgodbe/coreclr,ruben-ayrapetyan/coreclr,krk/coreclr,ruben-ayrapetyan/coreclr