Apply PR 45552 ModernBERT autodoc warning fix

Author: evalstate

src/transformers/utils/auto_docstring.py

@@ -43,6 +43,7 @@
     "image_processing_pil_*.py",
     "image_processing_*.py",
     "feature_extractor_*.py",
+    "modular_*.py",
 ]
 
 PLACEHOLDER_TO_AUTO_MODULE = {