Write stack service account file to right path (#554) #2303

Job	Run time
Build cloud image	39m 4s
GoReleaser build (ubuntu-latest)	9m 14s
Build dind image	5m 26s
GoReleaser build (macos-latest)	4m 25s
GoReleaser build (windows-latest)	11m 4s
Build image	29m 57s
Lint	1m 9s
Unit test	4m 12s
Trivy fs scan	24s
	1h 44m 55s

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