chore(minio): do not configure MinIO with root credentials (#1178) #1311

Job	Run time
console / helm-integration-test-console	2h 0m 14s
backend (artifact-backend) / helm-integration-test	13m 46s
backend (mgmt-backend) / helm-integration-test	13m 12s
backend (model-backend) / helm-integration-test	17m 4s
backend (pipeline-backend) / helm-integration-test	14m 10s
	2h 58m 26s

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