fix: upgrade alpine packages in skills-init to resolve CVE-2026-22184#1613

jsonmp-k8 wants to merge 1 commit intokagent-dev:mainkagent-dev/kagent:mainfrom

jsonmp-k8:fix/cve-2026-22184-zlibjsonmp-k8/kagent:fix/cve-2026-22184-zlibCopy head branch name to clipboard