Check consistency of ENC blobs in eyaml data doesn't take eyaml plugins into account

[sp-ricard-valverde]

puppet-syntax/lib/puppet-syntax/hiera.rb

Line 59 in 55ea82f

return "has unknown eyaml method #{method}" unless ['PKCS7','GPG'].include? method

This check doesn't take into account plugins custom tags, such as KMS, when installed and loaded.