core: Fix missing changes for codegen tests

Apparently the changes were dropped after rebasing.

nac3core/src/codegen/test.rs

@@ -24,6 +24,7 @@ use nac3parser::{
 use parking_lot::RwLock;
 use std::collections::{HashMap, HashSet};
 use std::sync::Arc;
+use inkwell::targets::{InitializationConfig, Target};
 
 struct Resolver {
     id_to_type: HashMap<StrRef, Type>,