Update CHANGELOG.md
Update CHANGELOG.md

ricardclau/packer,tas50/packer,rnaveiras/packer,hashicorp/packer,mitchellh/packer,mitchellh/packer,tas50/packer,bryson/packer,pecigonzalo/packer,hashicorp/packer,dave2/packer,bryson/packer,paulmey/packer,ricardclau/packer,rnaveiras/packer,timsutton/packer,paulmey/packer,paulmey/packer,grubernaut/packer,rnaveiras/packer,timsutton/packer,pecigonzalo/packer,paulmey/packer,mitchellh/packer,pecigonzalo/packer,dave2/packer,grubernaut/packer,bryson/packer,timsutton/packer,grubernaut/packer,rnaveiras/packer,bryson/packer,ricardclau/packer,hashicorp/packer,timsutton/packer,grubernaut/packer,rnaveiras/packer,grubernaut/packer,bryson/packer,dave2/packer,ricardclau/packer,tas50/packer,mitchellh/packer,paulmey/packer,timsutton/packer,hashicorp/packer,ricardclau/packer,pecigonzalo/packer,dave2/packer,mitchellh/packer,rnaveiras/packer,paulmey/packer,dave2/packer,bryson/packer,tas50/packer,tas50/packer,grubernaut/packer,tas50/packer,timsutton/packer,ricardclau/packer,dave2/packer