Problem

Some pages in the 1.6 docs refer to the deprecated v1alpha1 (or v1alpha2) CRD versions, or some of the CRD fields like `spec.application.replicas` that have been deprecated since 1.3: https://docs.redhat.com/en/documentation/red_hat_developer_hub/1.3/html/release_notes/deprecated-functionalities#deprecated-functionality-rhidp-1138

Affected pages/files:

• 2.1.3. Making object storage accessible to containers by using the Operator: The `Backstage` example CR provided in the procedure uses `objectbucket.io/v1alpha1`, which is not the right apiVersion. It should be `rhdh.redhat.com/v1alpha3`
• 5.1. Configuring High availability in a Red Hat Developer Hub Operator deployment: the `Backstage` CR example relies on the `spec.application.replicas` field, which has been deprecated in 1.3. See the 1.3 RN for replacement options.
• 1.2. Using the Red Hat Developer Hub Operator to run Developer Hub with your custom configuration: Remove the deprecated `spec.application.replicas` fields from the `Backstage` example CRs