feat: added advanced_ocr_options field in OcrConfig (#451)

PiperOrigin-RevId: 504600937

Source-Link: googleapis/googleapis@91bee51

Source-Link: https://github.com/googleapis/googleapis-gen/commit/70424b9457d15ed852a0a0b9a4f032f2b309b32c
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiNzA0MjRiOTQ1N2QxNWVkODUyYTBhMGI5YTRmMDMyZjJiMzA5YjMyYyJ9

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

google/cloud/documentai_v1beta3/types/document_io.py

@@ -227,12 +227,19 @@ class OcrConfig(proto.Message):
             Enables special handling for PDFs with
             existing text information. Results in better
             text extraction quality in such PDF inputs.
+        advanced_ocr_options (MutableSequence[str]):
+            A list of advanced OCR options to further
+            fine-tune OCR behavior.
     """
 
     enable_native_pdf_parsing: bool = proto.Field(
         proto.BOOL,
         number=3,
     )
+    advanced_ocr_options: MutableSequence[str] = proto.RepeatedField(
+        proto.STRING,
+        number=5,
+    )
 
 
 __all__ = tuple(sorted(__protobuf__.manifest))