Interfaces forcing c# 8.0, is this intended?

Describe the bug When we have an interface in the graphl schema the generated c# interface properties will have a public prefix making them a c# 8.0 feature.

Schema

interface Product {
  articles: [Article!]!
}

C#

public interface Product {
      [JsonProperty("articles")]
      public List<Article> articles { get; set; }
}

I guess the publicpart here should probably be omitted? Or is this intended?

1. My GraphQL schema:

# Put your schema here

2. My GraphQL operations:

# Put your operations here

3. My codegen.yml config file:

overwrite: true
schema: "https://somedomain/graphql"
documents: "./src/graphql/**/*.graphql"
generates:
  ./src/GraphQL/Client/GraphQLClientServices.generated.cs:
    config:
      namespaceName: SomeNameSpace
      typesafeOperation: false
    plugins:
      - c-sharp
      - c-sharp-operations

Expected behavior I expect the output to not include the public part.

Environment:

• OS: Windows / Git Bash

"@graphql-codegen/c-sharp-operations": "^1.18.0",
"@graphql-codegen/cli": "^1.20.1",
"@graphql-codegen/typescript": "^1.20.2",
"@graphql-codegen/typescript-graphql-request": "^3.0.2",
"@graphql-codegen/typescript-operations": "^1.17.14",

• NodeJS: v14.15.1