curl --request GET \
  --url https://api.example.com/api/v1/specs/{spec_id}/history \
  --header 'Authorization: Bearer <token>'

[
  {
    "action": "<string>",
    "actor_id": "<string>",
    "actor_name": "<string>",
    "actor_type": "<string>",
    "created_at": "2023-11-07T05:31:56Z",
    "id": "<string>",
    "spec_id": "<string>",
    "changes": [
      {
        "field": "<string>",
        "new": "<unknown>",
        "old": "<unknown>"
      }
    ],
    "summary": "<string>",
    "version": 123
  }
]