Fix doipsocket6 #5837

Job	Run time
CodeQL analysis	4m 29s
Code health check	1m 23s
pyca/cryptography test	29s
Build doc	6m 32s
Type hints check	35s
ubuntu-latest 3.7 non_root -K scanner	4m 34s
ubuntu-latest 3.8 non_root -K scanner	3m 50s
ubuntu-latest 3.9 non_root -K scanner	4m 19s
ubuntu-latest 3.10 non_root -K scanner	4m 2s
ubuntu-latest 3.10 root -K scanner	5m 9s
ubuntu-latest pypy3.9 root -K scanner	5m 5s
ubuntu-latest libpcap 3.10 root -K scanner	5m 28s
macos-12 3.10 both -K scanner	9m 10s
ubuntu-latest 3.10 root -k scanner	4m 27s
ubuntu-latest pypy3.9 root -k scanner	3m 24s
macos-12 3.10 both -k scanner	3m 48s
	1h 6m 44s

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