fix: use data manager's class loader

Author: Sammster10

core/src/main/java/net/staticstudios/data/util/ClassUtils.java

@@ -1,11 +1,13 @@
 package net.staticstudios.data.util;
 
+import net.staticstudios.data.DataManager;
+
 public class ClassUtils {
 
     @SuppressWarnings("unchecked")
     public static <T> Class<T> forName(String className) {
         try {
-            return (Class<T>) Class.forName(className, false, Thread.currentThread().getContextClassLoader());
+            return (Class<T>) Class.forName(className, false, DataManager.class.getClassLoader());
         } catch (ClassNotFoundException e) {
             throw new RuntimeException("Class not found: " + className, e);
         }