[FEAT] - Split deployment of Greenhouse controller manager

[IvoGoman]

Priority

(Medium) I'm annoyed but I'll live

User Story

As an Operator of the Greenhouse platform I want to deploy the operator and the webhooks separately, so that a failing operator deployment does not block Admission and Helm rollback.

Description

The Greenhouse Helm chart has one deployment to rollout the controller manager, which runs both the Operator and the Webhooks.
The goal of the issue is that the Operator and the Webhooks are deployed separately. This ensures that among others that Greenhouse CR's can still be applied when the Operator is failing.
There are already environment variables in place to run the operator in webhook only or controller only mode.

Acceptance Criteria

• Helm Chart has separate deployments for webhook and operator
• Metrics are scraped for both deployments

Reference Issues

No response