deprecating integrations moved to langchain_google_community (#19841)

Thank you for contributing to LangChain!

- [ ] **PR title**: "community: deprecating integrations moved to
langchain_google_community"

- [ ] **PR message**: deprecating integrations moved to
langchain_google_community

---------

Co-authored-by: ccurme <chester.curme@gmail.com>

libs/community/langchain_community/document_loaders/parsers/docai.py

@@ -10,6 +10,7 @@ import time
 from dataclasses import dataclass
 from typing import TYPE_CHECKING, Iterator, List, Optional, Sequence
 
+from langchain_core._api.deprecation import deprecated
 from langchain_core.documents import Document
 from langchain_core.utils.iter import batch_iterate
 
@@ -33,6 +34,11 @@ class DocAIParsingResults:
     parsed_path: str
 
 
+@deprecated(
+    since="0.0.32",
+    removal="0.2.0",
+    alternative_import="langchain_google_community.DocAIParser",
+)
 class DocAIParser(BaseBlobParser):
     """`Google Cloud Document AI` parser.