Enable mypy static type checking for azure-communication-chat package#31

Copilot wants to merge 3 commits intomainkristapratico/azure-sdk-for-python:mainfrom

copilot/fix-8db40927-5598-4420-97e6-6aa516117ae3kristapratico/azure-sdk-for-python:copilot/fix-8db40927-5598-4420-97e6-6aa516117ae3Copy head branch name to clipboard