fix: createBuckets simplify implementation #1705

Job	Run time
Shellcheck (1.21.x)	24s
govet (1.21.x, ubuntu-latest)	3m 10s
Check for vulnerable dependencies (1.21.x)	50s
lint (1.21.x, ubuntu-latest)	4m 30s
gotest (1.21.x, ubuntu-latest)	3m 47s
operator (1.21.x, ubuntu-latest)	5m 13s
test-kes (1.21.x, ubuntu-latest)	5m 30s
test-policy-binding (1.21.x, ubuntu-latest)	9m 20s
helm (1.21.x, ubuntu-latest)	2m 51s
helm-floor (1.21.x, ubuntu-latest)	3m 7s
test-tenant (1.21.x, ubuntu-latest)	3m 41s
test-tenant-upgrade (1.21.x, ubuntu-latest)	5m 14s
	47m 37s

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