(Kotlin) Readonly list is generated for GraphQL List type

• Environment : com.netflix.dgs.codegen version 5.1.10
• Language : Kotlin
• Issue : for graphql list type, Kotlin List is generated. Therefore, mutation to the list is not allowed. I need some options to enable mutable list.

For the following type

type Customer {
id : ID!
name : String!
phone : String
orders : [Order!]!
}

generated Source is

public data class Customer(
@JsonProperty("id")
public val id: String,
@JsonProperty("name")
public val name: String,
@JsonProperty("phone")
public val phone: String? = null,
@JsonProperty("orders")
public val orders: List
) {
public companion object
}

For variable orders, data type is List instead of MutableList.

No source file, test, or entry point is named. Start by tracing how the GraphQL orders field becomes Kotlin List in the generated Customer data class; done should include a documented option for generating a mutable list type and a way to verify the generated result.