Avoid creating a task to do DNS resolution if there is no throttle #2737

Job	Run time
Generate llhttp sources	5s
Linter	1m 5s
Test (3.8, ubuntu, false)	5m 48s
Test (3.8, windows, false)	5m 17s
Test (3.8, Y, ubuntu, false)	5m 43s
Test (3.9, ubuntu, false)	7m 13s
Test (3.9, macos, false)	7m 36s
Test (3.9, windows, false)	5m 57s
Test (3.9, Y, ubuntu, false)	4m 30s
Test (3.10, ubuntu, false)	5m 8s
Test (3.10, macos, false)	7m 15s
Test (3.10, windows, false)	5m 35s
Test (3.10, Y, ubuntu, false)	4m 36s
Test (pypy-3.9, Y, ubuntu, false)	10m 4s
Test (macos, 3.11, true, Y)	9m 52s
Test (ubuntu, 3.11, false, Y)	4m 15s
Test (windows, 3.11, true, Y)	14m 7s
Test (ubuntu, 3.12, true, Y)	4m 50s
Test (macos, 3.12, true, Y)	15m 11s
Test (windows, 3.12, true, Y)	16m 14s
check	1s
Pre-Deploy	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }}	0s
Tarball	0s
Deploy	0s
	2h 20m 22s

Provide feedback