Internal IntegrationError is not exposed to integration job log

[ndowmon]

https://github.com/JupiterOne/graph-okta/blob/52b04402262628831be112534adbb95c9661c5e7/src/synchronizers/synchronizeUsers.ts#L48

PR #104 introduced error messages intended to expose a message to the user about step dependency failures that cause synchronizer steps to be skipped. It turns out the managed integration SDK does not honor exposing integration errors, and instead wraps all errors thrown out of steps with a generic IntegrationError.

**EDIT:**I believe the error is thrown here: https://bitbucket.org/jupiterone/jupiter-managed-integration-sdk/src/b8d1e6cce5f4615430d3f4ab21012caa4eef68d0/src/integration/execution/executeStepFunctionsStart.ts#lines-55