Creates a secret

curl --request POST \
  --url https://api.rootly.com/v1/secrets \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '{
  "data": {
    "type": "secrets",
    "attributes": {
      "kind": "built_in",
      "name": "<string>",
      "secret": "<string>",
      "hashicorp_vault_mount": "secret",
      "hashicorp_vault_path": "<string>",
      "hashicorp_vault_version": 0
    }
  }
}'

{
  "data": {
    "id": "7ee32252-8911-4b81-a098-02b022ee8610",
    "type": "secrets",
    "attributes": {
      "kind": "built_in",
      "name": "kppvcpthah",
      "secret": "[REDACTED]",
      "hashicorp_vault_mount": "secret",
      "hashicorp_vault_path": null,
      "hashicorp_vault_version": 0,
      "created_at": "2025-10-31T18:59:25.068-07:00",
      "updated_at": "2025-10-31T18:59:25.068-07:00"
    }
  }
}