fix: remove `nokeys` option and set default empty import/export passwords #293

Job	Run time
Puppet / Static validations	21s
Puppet / 8 (Ruby 3.2)	22s
Puppet / 7 (Ruby 2.7)	31s
Puppet / Puppet 8 - Debian 11	10m 4s
Puppet / Puppet 7 - Debian 11	4m 35s
Puppet / Puppet 8 - Debian 12	10m 5s
Puppet / Puppet 7 - Debian 12	4m 20s
Puppet / Puppet 8 - Ubuntu 20.04	5m 49s
Puppet / Puppet 7 - Ubuntu 20.04	7m 13s
Puppet / Puppet 8 - Ubuntu 22.04	10m 3s
Puppet / Puppet 7 - Ubuntu 22.04	10m 6s
Puppet / Puppet 8 - Ubuntu 24.04	7m 15s
Puppet / Puppet 7 - Ubuntu 24.04	6m 2s
Puppet / Puppet 8 - OracleLinux 8	10m 5s
Puppet / Puppet 7 - OracleLinux 8	7m 15s
Puppet / Puppet 8 - OracleLinux 9	10m 5s
Puppet / Puppet 7 - OracleLinux 9	1m 48s
Puppet / Puppet 8 - Rocky 8	10m 5s
Puppet / Puppet 7 - Rocky 8	10m 5s
Puppet / Puppet 8 - Rocky 9	2m 6s
Puppet / Puppet 7 - Rocky 9	9m 4s
Puppet / Puppet 8 - AlmaLinux 8	2m 33s
Puppet / Puppet 7 - AlmaLinux 8	3m 57s
Puppet / Puppet 8 - AlmaLinux 9	9m 17s
Puppet / Puppet 7 - AlmaLinux 9	2m 28s
Puppet / Puppet 8 - CentOS 9	4m 12s
Puppet / Puppet 7 - CentOS 9	10m 7s
Puppet / Distro Puppet - Archlinux rolling	9m 47s
Puppet / Test suite	2s
	2h 59m 42s

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