feat: add ocp_versions to pattern metadata schema

[p-rog]

Summary

Extends pattern.schema.json with the ocp_versions property so patterns can declare OCP version compatibility requirements in their pattern-metadata.yaml.

Schema additions

• ocp_versions — optional object property on the root schema
• ocpVersions definition — contains minimum (version string) and unsupported (array of version+reason objects)
• unsupportedOcpVersion definition — requires version and reason, both validated with a semver-like pattern

Example usage in pattern-metadata.yaml

ocp_versions:
  minimum: "4.20"
  unsupported:
    - version: "4.23"
      reason: "Not yet validated — operator catalog and channel availability unconfirmed"

Related PRs

• rhvp.cluster_utils#151 — validate_ocp_version Ansible role that consumes this metadata
• layered-zero-trust#170 — first pattern to adopt ocp_versions

Made with Cursor

[p-rog]

@mbaldessari please take a look at this PR.

[mbaldessari]

/lgtm

[mbaldessari]

I'll merge this once we're happy with the main one