e2e

remove support for client-side docker content trust validation #8248

Job	Run time
tests (local, alpine, 28)	3m 40s
tests (local, alpine, 27)	3m 45s
tests (local, alpine, 25)	3m 40s
tests (local, debian, 27)	3m 53s
tests (local, debian, 28)	3m 37s
tests (local, debian, 29-rc)	3m 40s
tests (local, alpine, 29-rc)	3m 40s
tests (local, debian, 25)	3m 37s
tests (connhelper-ssh, alpine, 29-rc)	4m 7s
tests (connhelper-ssh, debian, 29-rc)	4m 3s
tests (connhelper-ssh, alpine, 27)	3m 54s
tests (connhelper-ssh, debian, 28)	4m 7s
tests (connhelper-ssh, alpine, 25)	4m 1s
tests (connhelper-ssh, debian, 27)	4m 10s
tests (connhelper-ssh, alpine, 28)	4m 1s
tests (connhelper-ssh, debian, 25)	3m 57s
	1h 1m 52s

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