test: Adapt to the latest aiohttp
test: Adapt to the latest aiohttp

 * For UNIX sockets, aiohttp no longer raises ClientOSError but the
   native underlying exceptions.
   (I will check if this is the intended change of aiohttp to Andrew)

gaopeiliang/aiodocker,barrachri/aiodocker,gaopeiliang/aiodocker,barrachri/aiodocker,gaopeiliang/aiodocker,barrachri/aiodocker,paultag/aiodocker