C-sharp-operations fails with `fragmentNames.map is not a function`

Which packages are impacted by your issue?

@graphql-codegen/c-sharp-operations

Describe the bug

This issue also reproduces in https://the-guild.dev/graphql/codegen where if you choose the C# operations, it will fail with e.map is not a function, which I guess is the same error, but with a minified script.

Is there a known version combination where the c-sharp-operations plugin worked?

Your Example Website or App

https://the-guild.dev/graphql/codegen

Steps to Reproduce the Bug or Issue

The failing example in the website is a good reproduction.

Expected behavior

As a user, I expect the "hello world" example to succeed

Screenshots or Videos

No response

Platform

• OS: Windows
• NodeJS: 18.16.1
• graphql version: various
• @graphql-codegen/c-sharp-operations version(s): 2.3.1

Codegen Config File

No response

Additional context

No response