added the new label comment_section in the groups

Signed-off-by: Peter Staar <[email protected]>

docling_core/types/doc/labels.py

@@ -48,7 +48,8 @@ class GroupLabel(str, Enum):
     SLIDE = "slide"
     FORM_AREA = "form_area"
     KEY_VALUE_AREA = "key_value_area"
-
+    COMMENT_SECTION = "comment_section"
+
     def __str__(self):
         """Get string value."""
         return str(self.value)