List Prompt Versions

curl --request GET \
  --url https://api.portkey.ai/v1/prompts/{promptId}/versions \
  --header 'x-portkey-api-key: <api-key>'

[
  {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "prompt_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "prompt_template": {},
    "prompt_version": 123,
    "prompt_description": "<string>",
    "label_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "created_at": "2023-11-07T05:31:56Z",
    "status": "active",
    "object": "prompt"
  }
]