chore(deps): update dependency google-cloud-documentai to v1.3.0 (#290)

Co-authored-by: Anthonios Partheniou <[email protected]>

Author: renovate-bot

document_ai/snippets/requirements.txt

@@ -1,2 +1,2 @@
-google-cloud-documentai==1.2.1
+google-cloud-documentai==1.3.0
 google-cloud-storage==2.1.0