nsc push should support wss/ws

[wenerme]

When I try to push nsc through wss

nsc push -a incs -u wss://nats

Error: scheme "wss" is not supported (http, https, nats)

But the https is not wss, because

nsc push -a incs -u https://nats

[ERR ] push incs to account server:
       [ERR ] failed to push account to remote server
       > Method Not Allowed
Error: all jobs failed