pipeline:update: Support changing the Prod Deploy Approval step

**Is your feature request related to a problem? Please describe.**
We are using the CM CLI tool extensively to manage our pipelines and executions. Unfortunately, not all options available in the CM UI are available in the CLI and this is causing a lot of troubles.

**Describe the solution you'd like**
Please add new option for cloudmanager:pipeline:update, with the same functionality as the "Pause before deploying to Production" checkbox field available in the UI of a production pipeline. New option might be called `--prodDeploymentApproval` (true/false) and it should work only when the pipeline is a production pipeline. If the pipeline is not a production pipeline, the usage of this option should result in a non-zero exit code.

**Describe alternatives you've considered**
Programmatic workaround is not possible here because this option is not yet supported by the Cloud Manager API itself (or at least it is not documented).

Beginne mit dem Befehl cloudmanager:pipeline:update und verfolge, wie seine vorhandenen Optionen verarbeitet werden. Füge das angeforderte --prodDeploymentApproval true/false-Verhalten für Produktions-Pipelines hinzu und stelle sicher, dass Nicht-Produktions-Pipelines einen Exit-Code ungleich null zurückgeben.

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