[BUG] Invalid generated type for array

[juh9870]

Describe the bug
Generated types for my Schema have array field incorrectly generated as list of lists, instead of just a list, leading to deserialization issues.

To Reproduce
Schema: https://pastebin.com/LeDj3HbB

{
//...
    "BookEntity": {
        "type": "object",
        "properties": {
        // ...
          "tags": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "type": {
                  "type": "string",
                  "enum": [
                    "GENRE",
                    "AUTHOR",
                    "MISC"
                  ]
                },
                "name": {
                  "type": "string"
                }
              },
              "required": [
                "type",
                "name"
              ]
            }
          }
        // ...
        }
    }
//...
}

Generated code:

class BookEntity {
// ...
  @JsonKey(name: 'tags', defaultValue: <BookEntity$Tags>[])
  final List<BookEntity$Tags> tags;
// ...
}
// ...

typedef BookEntity$Tags = List<BookEntity$Tags$Item>;

Expected behavior
Non-nested list should be generated

class BookEntity {
// ...
  @JsonKey(name: 'tags', defaultValue: <BookEntity$Tags$Item>[])
  final BookEntity$Tags tags;
// ...
}
// ...

typedef BookEntity$Tags = List<BookEntity$Tags$Item>;

Swagger specification link
Schema: https://pastebin.com/LeDj3HbB

Library version used:
chopper: ^6.1.1
json_annotation: ^4.8.0
chopper_generator: ^6.0.0
json_serializable: ^6.6.1
swagger_dart_code_generator: ^2.10.2

Additional context
Add any other context about the problem here.