e2e

fix perfsprint (concat-loop) linting #8288

Job	Run time
tests (local, alpine, 27)	3m 46s
tests (local, alpine, 25)	3m 34s
tests (local, debian, 28)	3m 42s
tests (connhelper-ssh, alpine, 27)	3m 46s
tests (local, debian, 27)	3m 43s
tests (connhelper-ssh, alpine, 29-rc)	3m 46s
tests (local, alpine, 29-rc)	3m 32s
tests (local, alpine, 28)	3m 35s
tests (connhelper-ssh, debian, 29-rc)	3m 46s
tests (local, debian, 25)	3m 34s
tests (connhelper-ssh, alpine, 25)	3m 44s
tests (connhelper-ssh, debian, 25)	3m 46s
tests (connhelper-ssh, debian, 28)	3m 35s
tests (local, debian, 29-rc)	3m 40s
tests (connhelper-ssh, debian, 27)	3m 46s
tests (connhelper-ssh, alpine, 28)	3m 45s
	59m 0s

Provide feedback