YWH works unauth, allow it on the CLI

[dee-see]

See title

Before:

$ ./bbscope poll ywh
ERRO[0000] yeswehack requires either token or email+password+otp-secret

After

$ ./bbscope poll ywh | head
INFO[0000] No YesWeHack credentials provided; polling public programs unauthenticated
INFO[0000] Fetching scope from ywh...
*.privateinternetaccess.com https://yeswehack.com/programs/private-internet-access-bug-bounty-program
*.piaservers.com https://yeswehack.com/programs/private-internet-access-bug-bounty-program
*.piaservers.net https://yeswehack.com/programs/private-internet-access-bug-bounty-program
api.privateinternetaccess.com https://yeswehack.com/programs/private-internet-access-bug-bounty-program
https://privateinternetaccess.com/api/client/v5 https://yeswehack.com/programs/private-internet-access-bug-bounty-program
PIA VPN servers https://yeswehack.com/programs/private-internet-access-bug-bounty-program
https://apps.apple.com/us/app/private-internet-access-anonymous/id955626407 https://yeswehack.com/programs/private-internet-access-bug-bounty-program
https://play.google.com/store/apps/details?id=com.privateinternetaccess.android&hl=en https://yeswehack.com/programs/private-internet-access-bug-bounty-program
https://www.privateinternetaccess.com/download/linux-vpn https://yeswehack.com/programs/private-internet-access-bug-bounty-program
https://www.privateinternetaccess.com/download/mac-vpn https://yeswehack.com/programs/private-internet-access-bug-bounty-program