Recommended change to 3.8.6 or above

[jamiesun]

botbuilder-python/libraries/botbuilder-integration-aiohttp/setup.py

Line 13 in 7b064bb

"aiohttp==3.8.5",

I have a conflict when introducing llamaindex, which requires version 3.8.6 or higher!

[basilisk487]

It also gets us flagged for 5 aiohttp vulnerabilities (1 high severity, 4 medium)

[tracyboehrer]

ACK on this. 3.9.2 is causing some issue we'll need to resolve.