Fix directory creation issue in adapter file copying

adapter.py

@@ -86,10 +86,14 @@ for file in UTILITY_FILES:
     src = os.path.join(current_dir, file)
     dst = os.path.join(current_dir, 'ablang2', 'pretrained_utils', file)
     if os.path.exists(src) and not os.path.exists(dst):
+        # Ensure the destination directory exists
+        os.makedirs(os.path.dirname(dst), exist_ok=True)
         shutil.copy2(src, dst)
 
 # Also copy encodings.py as encodings.py (original name)
 if os.path.exists('ablang_encodings.py') and not os.path.exists('ablang2/pretrained_utils/encodings.py'):
+    # Ensure the destination directory exists
+    os.makedirs('ablang2/pretrained_utils', exist_ok=True)
     shutil.copy2('ablang_encodings.py', 'ablang2/pretrained_utils/encodings.py')
 
 # Now import using the original structure