uPyShell's wget should NOT handle connect to network

[petrkr]

regarding to
https://github.com/octopusengine/octopuslab/blob/180eb89c37f745085ac029141739435e25966e54/esp32-micropython/util/shell/__init__.py#L421-L425

wget command tries connect to WiFi by using "w" from octopus library. In normal operation wget command should NOT do any network connection related things. If there is NO internet connection, it should return exit code with "no internet error"