don't try to create the json if we don't have a config
don't try to create the json if we don't have a config

Yubico/yubikey-personalization-dpkg,eworm-de/yubikey-personalization,Yubico/yubikey-personalization,Yubico/yubikey-personalization-dpkg,dmitriykuptsov/yubikey-personalization,eworm-de/yubikey-personalization,eworm-de/yubikey-personalization,Yubico/yubikey-personalization,dmitriykuptsov/yubikey-personalization,dmitriykuptsov/yubikey-personalization,Yubico/yubikey-personalization-dpkg