Misc: allow to use proxy in HTTPConnection (vllm-project#12042)

Signed-off-by: Yuan Zhou <[email protected]>

Author: zhouyuan

vllm/connections.py

@@ -29,7 +29,7 @@ def get_sync_client(self) -> requests.Session:
     # required, so that the client is only accessible inside async event loop
     async def get_async_client(self) -> aiohttp.ClientSession:
         if self._async_client is None or not self.reuse_client:
-            self._async_client = aiohttp.ClientSession()
+            self._async_client = aiohttp.ClientSession(trust_env=True)
 
         return self._async_client