Don't wrap yaml lines for confs

[mattmix]

The default behavior of to_yaml is to wrap lines to 80 characters, but confs can be erb templates that can exceed that and get broken by the forced line wrap. For example, this hiera:

openondemand::confs:
  support_ticket:
    template: true
    data:
      support_ticket:
        email:
          to: [email protected]
          delivery_method: sendmail

        attributes:
          username:
            value: "<%= CurrentUser.name %>"
            readonly: true
          email:
            value: "<%= %x{ldapsearch -x uid=#{CurrentUser.name} mail | grep -Po 'mail: \\K[^\\s]+' } %>"

email.value is linewrapped when processed through to_yaml, breaking the ERB template.

The fix in this PR is to not line wrap.