Allow arrays for `server_jvm_extra_args` parameter
The tests for puppet::server::puppetserver already cover using an arrayof strings for this parameter, but the base classes forbid it.https://github.com/theforeman/puppet-puppet/blob/ee01cffe239c5080c784d17a37a34742fc7db0fe/spec/classes/puppet_server_puppetserver_spec.rb#L823
Allow arrays for `server_jvm_extra_args` parameter
The tests for puppet::server::puppetserver already cover using an array
of strings for this parameter, but the base classes forbid it.
https://github.com/theforeman/puppet-puppet/blob/ee01cffe239c5080c784d17a37a34742fc7db0fe/spec/classes/puppet_server_puppetserver_spec.rb#L823