[Schema Inaccuracy] "issue-simple" schema's "labels" items properties are defined as optional

[gr2m]

Schema Inaccuracy

The labels item properties are all defined as optional in #/components/schemas/issue-simple

"issue-simple": {
  "title": "Issue Simple",
  "description": "Issue Simple",
  "type": "object",
  "properties": {
    ...
    "labels": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "id": { "type": "integer" },
          "node_id": { "type": "string" },
          "url": { "type": "string" },
          "name": { "type": "string" },
          "description": { "type": "string", "nullable": true },
          "color": { "type": "string" },
          "default": { "type": "boolean" }
        }
      }
    },
},

Expected

The should all be defined as required. I think that #/components/schemas/label has the correct schema already, so maybe the best change would be

"issue-simple": {
  "title": "Issue Simple",
  "description": "Issue Simple",
  "type": "object",
  "properties": {
    ...
    "labels": {
      "type": "array",
      "items": { "$ref": "#/components/schemas/label" }
    },
},

Reproduction Steps

curl https://api.github.com/repos/github/rest-api-description/issues/109 | jq '.labels'
[
  {
    "id": 2231940444,
    "node_id": "MDU6TGFiZWwyMjMxOTQwNDQ0",
    "url": "https://api.github.com/repos/github/rest-api-description/labels/Inaccuracy",
    "name": "Inaccuracy",
    "color": "f94050",
    "default": false,
    "description": ""
  }
]