Fix incorrect yup schema (#388) #267

Job	Run time
build-cluster-init	11s
build-ui	3m 58s
build-api	1m 55s
build-test-experiment-engine-plugin	30s
build-router	56s
release-rules	2s
test-engines-experiment	3m 34s
test-engines-router	5m 17s
test-api	7m 42s
test-e2e (In-cluster credentials; API e2e)	13m 51s
test-e2e (Remote cluster credentials; SDK e2e)	13m 47s
publish / publish-app	59s
publish / publish-router	15s
	52m 57s

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