Retrieve public key

curl --request GET \
  --url https://platform.versori.com/api/organisations/v1/keys/{id}

{
  "id": "<string>",
  "name": "Organisation Public Key 1",
  "publicKey": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvZgZz...==\n-----END PUBLIC KEY-----",
  "createdAt": "2023-01-01T12:00:00Z"
}