chore: update SQLAlchemy dep to include optional asyncio deps (#1074)

Author: jackwotherspoon

requirements-test.txt

@@ -2,7 +2,7 @@ pytest==8.1.1
 mock==5.1.0
 pytest-cov==5.0.0
 pytest-asyncio==0.23.6
-SQLAlchemy==2.0.29
+SQLAlchemy[asyncio]==2.0.29
 sqlalchemy-pytds==1.0.0
 sqlalchemy-stubs==0.4
 PyMySQL==1.1.0