Complete EL10 rollout across metadata and acceptance matrix #222

Summary

EL10 support is partial in metadata and acceptance test defaults.

Findings

• Metadata omits Rocky 10 and OracleLinux 10.
• Default nodeset still targets EL8.
• EL10 nodesets exist only for RHEL/Alma/CentOS.

Evidence

• pupmod-simp-pupmod/metadata.json:85
• pupmod-simp-pupmod/metadata.json:92
• pupmod-simp-pupmod/spec/acceptance/nodesets/default.yml:3
• pupmod-simp-pupmod/spec/acceptance/nodesets/docker_rhel10.yml
• pupmod-simp-pupmod/spec/acceptance/nodesets/docker_alma10.yml
• pupmod-simp-pupmod/spec/acceptance/nodesets/docker_centos10.yml

Impact

Support claims and test execution do not fully cover intended EL10 distros.

Proposed Fix

Add Rocky/OEL 10 metadata + nodesets and promote EL10 as default acceptance target.

Definition of Done

Metadata and CI/testing matrix consistently cover all intended EL10 distros.