follow Kubebuilder recommendations in maintenance #1365

Job	Run time
build (1.35.4, 3Mi, change-to-secondary)	30m 54s
build (1.35.4, 10Mi, various-transfer-part-size)	25m 20s
build (1.35.4, 3Mi, lock)	25m 1s
build (1.35.4, 3Mi, incr-backup)	37m 41s
build (1.34.4, 3Mi, full-backup)	34m 58s
build (1.35.4, 3Mi, change-to-primary)	32m 35s
build (1.35.4, 3Mi, !//)	47m 44s
build (1.35.4, 3Mi, full-backup)	36m 33s
build (1.35.4, 200Gi, various-transfer-part-size)	23m 30s
build (1.35.4, 3Mi, backup-failure)	36m 5s
build (1.35.4, 3Mi, change-to-standalone)	24m 6s
	5h 54m 27s

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