chore(deps): update dependency google-cloud-documentai to v2 (#49)

* chore(deps): update dependency google-cloud-documentai to v2

* Update requirements.txt

---------

Co-authored-by: Holt Skinner <13262395+holtskinner@users.noreply.github.com>

Author: renovate-bot

packages/google-cloud-documentai-toolbox/samples/snippets/requirements.txt

@@ -1,3 +1,3 @@
-google-cloud-documentai==1.2.1
+google-cloud-documentai==2.11.0
 google-cloud-storage==2.7.0
-google-cloud-documentai-toolbox==0.1.0a0
+google-cloud-documentai-toolbox==0.1.1a0