[Bug]: kelivo autoupdate fails after Scoop PR #6653

Since ScoopInstaller/Scoop#6653 changed default checkver behavior for GitHub mode, `kelivo` manifest can no longer match version. The current manifest uses `"github": "..."` and a custom `regex` without `jsonpath`. The new internal defaults conflict with it. Fix: switch to explicit GitHub API URL with `jsonpath` and `regex` as tested working.