Removed unnecessary Cancel ACK's field (#4613) #7315

Job	Run time
Code health check	1m 7s
Build doc	6m 6s
CodeQL analysis	2m 7s
pyca/cryptography test	26s
Type hints check	28s
Check SPDX identifiers	3s
ubuntu-latest 3.7 non_root -K scanner	4m 36s
ubuntu-latest 3.8 non_root -K scanner	4m 29s
ubuntu-latest 3.9 non_root -K scanner	4m 33s
ubuntu-latest 3.10 non_root -K scanner	4m 32s
ubuntu-latest 3.11 non_root -K scanner	3m 57s
ubuntu-latest 3.12 non_root -K scanner	4m 12s
ubuntu-latest 3.12 root -K scanner	5m 15s
ubuntu-latest pypy3.9 root -K scanner	4m 43s
ubuntu-latest libpcap 3.12 root -K scanner	5m 25s
macos-14 3.12 both -K scanner	6m 30s
ubuntu-latest 3.12 root -k scanner	5m 9s
ubuntu-latest pypy3.9 root -k scanner	4m 41s
macos-14 3.12 both -k scanner	1m 29s
	1h 9m 48s

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