requirement fixed. aiohttp changed from 3.8.1 to ~3.7.0

requirements.txt

 botbuilder-integration-aiohttp>=4.14.0
 azure-cosmos==4.2.0
 marshmallow==3.15.0
-aiohttp~=3.8.1
+aiohttp~=3.7.0
 simplejson==3.17.6
 marshmallow-dataclass==8.5.8
 stringcase==1.2.0