Update HCP Packer registry image extraction, validation, publishing logic for registry capable plugins (#11221)

* Update handling of registry artifacts

This change uses the github.com/hashicorp/packer-plgin-sdk/packer/registryimage for querying
Artifact State for HCP Registry Image metadata. To handle the conversion
of the RPC response, mapstructure was introduced to conversion state
data into an registryimage.Image before publishing to a image bucket.

* Update to use registry image from packersdk

* Rename internal registry service pkg

* Update vendored plugins to latest version

* The latest release of Amazon, GoogleCompute, and Azure have support
  for publishing images to the HCP Packer registry.