Generation fails with go 1.22

[tessig]

When generating graphql with go 1.22 the command panics panic: runtime error: invalid memory address or nil pointer dereference.

This is easily reproducible with an "empty" flamingo project.

func main() {
    flamingo.App(
        []dingo.Module{
            new(graphql.Module),
        },
    )
}

and go run main.go graphql

[carstendietrich]

fixed with #96