holder descriptor unknown version

This example exists to prove the schema refuses something the specification forbids. Validator output at build time:

• /specVersion must be equal to one of the allowed values

{
  "specVersion": "0.3",
  "type": "holder-descriptor",
  "id": "https://www.autoisto.sk/.well-known/isto-intents.json",
  "created": "2026-10-21T12:00:00Z",
  "operator": {
    "name": "AutoIsto s. r. o.",
    "url": "https://www.autoisto.sk",
    "contact": "mailto:info@autoisto.sk",
    "country": "SK"
  },
  "servers": [
    {
      "url": "https://www.autoisto.sk/mcp/zamery",
      "binding": "mcp",
      "transport": "streamable-http",
      "profiles": [
        "consent-link"
      ],
      "specVersions": [
        "0.1"
      ],
      "categories": [
        "vehicle"
      ],
      "countries": [
        "SK"
      ],
      "languages": [
        "sk"
      ],
      "title": "AutoIsto — car watch",
      "mcpRegistryName": "sk.autoisto/intents"
    }
  ],
  "registry": {
    "listing": "requested",
    "terms": "https://istointents.org/registry/terms/"
  },
  "forwarding": {
    "accept": "requested",
    "terms": "https://istointents.org/forwarding/terms/"
  }
}