BizHawkClient: Change `open_connection` to use 127.0.0.1 instead of localhost (#2525)

When using localhost on mac, both ipv4 and ipv6 are tried and raise separate errors
which are combined by asyncio and difficult/inelegant to handle.

Python 3.12 adds the argument all_errors, which would make this easier.

worlds/_bizhawk/__init__.py

@@ -97,7 +97,7 @@ async def connect(ctx: BizHawkContext) -> bool:
 
     for port in ports:
         try:
-            ctx.streams = await asyncio.open_connection("localhost", port)
+            ctx.streams = await asyncio.open_connection("127.0.0.1", port)
             ctx.connection_status = ConnectionStatus.TENTATIVE
             ctx._port = port
             return True