data/defaults: Fix wrong private data file name
data/defaults: Fix wrong private data file name

+ add missing % dsl keyword

SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site