Survey JSON schema doesn't treat Boolean values as valid for the `showQuestionNumbers` property

[JaneSjs]

T25982 - "showQuestionNumbers" in surveyjs_definition.json shows error for boolean types
https://surveyjs.answerdesk.io/internal/ticket/details/T25982

---

The showQuestionNumbers survey property is defined as follows in a survey JSON schema: https://github.com/surveyjs/survey-library/blob/fffdf935dc5f597baabfa84d36a4ab5a85a79582/packages/survey-core/docs/surveyjs_definition.json#L291C10-L291C29

"showQuestionNumbers": {
            "type": [
                "boolean",
                "string"
            ],
            "enum": [
                "on",
                "onPage",
                "recursive",
                "off"
            ]
        },

However, if you set this property to true/false, the following error appears:

Value is not accepted. Valid values: "on", "onPage", "recursive", "off".

Test this JSON in VS Code:

{
  "$schema": "https://unpkg.com/survey-core/surveyjs_definition.json",
  "showQuestionNumbers": true,  
  "pages": [
    {
      "name": "page1",
      "elements": [
      ]
    }
  ]
}