Update Cluster documentation creation

What does this MR do?

Includes the need to be at least a Compute Admin on GCP in order to create Clusters

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary

• Documentation created/updated

• Conform by the merge request performance guides

• Conform by the style guides

• Squashed related commits together

• End-to-end tests pass (package-qa manual pipeline job)

What are the relevant issue numbers?

Closes #43476 (closed)