test: Cover func updatestatefulset #466

Job	Run time
Validate YAML	12s
./tests/e2e-chainsaw/v1beta2/teardown/	5m 29s
./tests/e2e-chainsaw/v1beta2/setup/	10m 35s
./tests/e2e-chainsaw/v1beta2/hostnetwork/	10m 34s
./tests/e2e-chainsaw/v1beta2/password/	10m 30s
./tests/e2e-chainsaw/v1beta2/ha-setup/	10m 8s
./tests/e2e-chainsaw/v1beta2/ha-failover/	9m 31s
./tests/e2e-chainsaw/v1beta2/nodeport/	10m 27s
./tests/e2e-chainsaw/v1beta2/pvc-name/	8m 29s
./tests/e2e-chainsaw/v1beta2/keep-pvc/	5m 47s
./tests/e2e-chainsaw/v1beta2/acl-user/	10m 30s
./tests/e2e-chainsaw/v1beta2/scaling/	22m 33s
./tests/e2e-chainsaw/v1beta2/ignore-annots/	5m 17s
	2h 0m 2s

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