MTL-2000 Handle both formats

[rustydb]

Summary and Scope

• Relates to: MTL-2000 Needs top-level Zypper key #333

Issue Type

• RFE Pull Request

Handle cloud-init.yaml with or without a root zypper key.

Tested with both formats, and both produced valid data.json with the zypper root key present.

Prerequisites

• I have included documentation in my PR (or it is not required)
• I tested this on internal system (if yes, please include results or a description of the test)
• I tested this on a vshasta system (if yes, please include results or a description of the test)

Idempotency

Risks and Mitigations