Return available AutoSSL providers

Example response

{
  "data": {
    "payload": [
      {
        "display_name": "Sectigo",
        "enabled": 1,
        "module_name": "cPanel",
        "specs": {
          "AVERAGE_DELIVERY_TIME": 120,
          "DCV_METHODS": [
            "http",
            "dns"
          ],
          "DELIVERY_METHOD": "queue",
          "HTTP_DCV_MAX_REDIRECTS": 0,
          "MAX_DOMAINS_PER_CERTIFICATE": 1000,
          "RATE_LIMIT_CERTIFICATES_PER_REGISTERED_DOMAIN_PER_WEEK": 0,
          "SUPPORTS_ANCESTOR_DCV": 1,
          "SUPPORTS_WILDCARD": 0,
          "VALIDITY_PERIOD": 7776000
        }
      },
      {
        "display_name": "Let’s Encrypt™",
        "enabled": 0,
        "module_name": "LetsEncrypt",
        "specs": {
          "AVERAGE_DELIVERY_TIME": 5,
          "DCV_METHODS": [
            "http",
            "dns"
          ],
          "DELIVERY_METHOD": "api",
          "HTTP_DCV_MAX_REDIRECTS": 10,
          "MAX_DOMAINS_PER_CERTIFICATE": 100,
          "RATE_LIMIT_CERTIFICATES_PER_REGISTERED_DOMAIN_PER_WEEK": 50,
          "SUPPORTS_ANCESTOR_DCV": 0,
          "SUPPORTS_WILDCARD": 1,
          "VALIDITY_PERIOD": 7776000
        },
        "x_account_id": "https://acme-v01.api.letsencrypt.org/acme/reg/12345678",
        "x_terms_of_service": "https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf",
        "x_terms_of_service_accepted": 1
      }
    ]
  },
  "metadata": {
    "command": "get_autossl_providers",
    "reason": "OK",
    "result": 1,
    "version": 1
  }
}