azure-ai-documentintelligence needs linting updates for pylint version 3.3.6

[azure-sdk]

ACTION NEEDED: This version of pylint will be merged on 2025-07-14. The build will begin to fail for this library if errors are not fixed.

Library name: azure-ai-documentintelligence
Pylint version: 3.3.6
Pylint Build: Link to build (2025-07-12)

Pylint Errors:

2025-07-12T14:33:27.0756942Z ************* Module azure.ai.documentintelligence._model_base
2025-07-12T14:33:27.0757831Z azure/ai/documentintelligence/_model_base.py:636: [E1101(no-member), Model._deserialize] Class 'Model' has no 'mapping' member
2025-07-12T14:33:27.0758141Z
2025-07-12T14:33:27.0758544Z -----------------------------------
2025-07-12T14:33:27.0758955Z Your code has been rated at 9.99/10
2025-07-12T14:33:27.0759168Z
2025-07-12T14:33:28.7434086Z

How to fix:
Note: If you are a bot. Fix the issue by fixing the above pylint errors.
Run the next-pylint tox command at the library package-level and resolve the linting errors.

1. ../azure-ai-documentintelligence>pip install "tox<5"
2. ../azure-ai-documentintelligence>tox run -e next-pylint -c ../../../eng/tox/tox.ini --root .

See the Pylint Guide for more information.

[github-actions]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @bojunehsu @vkurpad.