The Git reference, formatted as `refs/pull//merge`, `refs/pull//head`, `refs/heads/` or simply ``.
{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/code-scanning-ref", "title": "code-scanning-ref", "type": "string", "description": "The Git reference, formatted as `refs/pull/<number>/merge`, `refs/pull/<number>/head`,\n`refs/heads/<branch name>` or simply `<branch name>`." }