Update aiohttp to 3.4.4 (#790)
Update aiohttp to 3.4.4 (#790)

* Update aiohttp from 3.4.1 to 3.4.4

* Fix bad merge

testbhearsum/balrog,testbhearsum/balrog,mozbhearsum/balrog,mozbhearsum/balrog,testbhearsum/balrog,testbhearsum/balrog,mozbhearsum/balrog,mozbhearsum/balrog