Merge pull request #1854 from kube-logging/fix/image-signing #2565

Job	Run time
Image build	2m 12s
Image build	2m 12s
Go end2end tests	8m 37s
Go end2end tests	8m 46s
Shell script tests with chart install (1.26)	2m 26s
Shell script tests with chart install (1.26)	2m 26s
Shell script tests with chart install (1.27)	2m 8s
Shell script tests with chart install (1.27)	2m 8s
Shell script tests with chart install (1.28)	2m 2s
Shell script tests with chart install (1.28)	2m 2s
Shell script tests with chart install (1.29)	2m 3s
Shell script tests with chart install (1.29)	2m 3s
Shell script tests with chart install (1.30)	2m 16s
Shell script tests with chart install (1.30)	2m 16s
Shell script tests with chart install (1.31)	2m 24s
Shell script tests with chart install (1.31)	2m 24s
	48m 25s

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