Outbox doesn't check array consistecy properly when it detemines its schema

Outbox transform can expand JSON payload. During this process it determines schema of JSON elements and requires the arrays to be homogenous. However, it doesn't check it properly, when array is e.g. [1, 2.0] the check is passed as both are of type NUMBER, but fails later as it uses wrong schema type (int32 vs. float64).