curl --request GET \
  --url https://staging.depot.mesa.dev/{org}/{repo}/branches \
  --header 'Authorization: Bearer <token>'

{
  "branches": [
    {
      "name": "<string>",
      "head_sha": "<string>",
      "is_default": true
    }
  ],
  "next_cursor": "<string>",
  "has_more": true
}