Annotations are ignored when added to an index signature

[macno]

Given this interface

interface MyObject {
    /**
     * We need at least one item
     *
     * @minItems 1
     */
    alist: string[];
    /**
     * We need at least one item
     *
     * @minItems 1
     */
    [key: string]: string[];
}

The expected schema is

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": {
    "items": {
      "type": "string"
    },
    "minItems": 1,
    "type": "array"
  },
  "properties": {
    "alist": {
      "description": "We need at least one item",
      "items": {
        "type": "string"
      },
      "minItems": 1,
      "type": "array"
    }
  },
  "type": "object"
}

but the generated schema is missing "minItems": 1 in additionalProperties

{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "additionalProperties": {
        "items": {
            "type": "string"
        },
        "type": "array"
    },
    "properties": {
        "alist": {
            "description": "We need at least one item",
            "items": {
                "type": "string"
            },
            "minItems": 1,
            "type": "array"
        }
    },
    "type": "object"
}

[Adityakumar37]

@macno @YousefED can i work on this issue