Updating for packer 1.6.0

* Updating to use packer 1.6.0
* Upgraded ther go modules as well
* Re generated mapstructure-to-hcl2
* Updating circleci release tagging.

.circleci/config.yml

@@ -7,7 +7,7 @@ executors:
     working_directory: ~/packer-provisioner-serverspec
   golang:
     docker:
-      - image: circleci/golang:1.13.8
+      - image: circleci/golang:1.13.12
     working_directory: ~/packer-provisioner-serverspec
     environment:
       ALPINE_VERSION: '3.10'
@@ -16,7 +16,7 @@ executors:
       - image: circleci/ruby:2.5.5
     working_directory: ~/packer-provisioner-serverspec
     environment:
-      PACKER_VERSION: '1.5.4'
+      PACKER_VERSION: '1.6.0'
       HASHI_KEY_URL: 'https://keybase.io/hashicorp/key.asc'
 jobs:
   build_provisioner:
@@ -105,4 +105,4 @@ workflows:
             branches:
               ignore: /.*/
             tags:
-              only: /(?<=^[Vv]|^)(?:(?<major>(?:0|[1-9](?:(?:0|[1-9])+)*))[.](?<minor>(?:0|[1-9](?:(?:0|[1-9])+)*))[.](?<patch>(?:0|[1-9](?:(?:0|[1-9])+)*))(?:-(?<prerelease>(?:(?:(?:[A-Za-z]|-)(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)?|(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)(?:[A-Za-z]|-)(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)?)|(?:0|[1-9](?:(?:0|[1-9])+)*))(?:[.](?:(?:(?:[A-Za-z]|-)(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)?|(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)(?:[A-Za-z]|-)(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)?)|(?:0|[1-9](?:(?:0|[1-9])+)*)))*))?(?:[+](?<build>(?:(?:(?:[A-Za-z]|-)(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)?|(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)(?:[A-Za-z]|-)(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)?)|(?:(?:0|[1-9])+))(?:[.](?:(?:(?:[A-Za-z]|-)(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)?|(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)(?:[A-Za-z]|-)(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)?)|(?:(?:0|[1-9])+)))*))?)$/
+              only: /^v\d+\.\d+\.\d+$/

README.md

@@ -105,7 +105,7 @@ A system-chosen port is used when `local_port` is missing or empty.
 Development
 ------------
 
-Packer 1.5.4 Added hcl2 support. In order to autogenerate support for this. Anytime a change to the `Config` struct is made you need to do the following to build.
+Packer 1.6.0 Added hcl2 support. In order to autogenerate support for this. Anytime a change to the `Config` struct is made you need to do the following to build.
 
 ```bash
 go install github.com/hashicorp/packer/cmd/mapstructure-to-hcl2

go.mod

@@ -1,10 +1,10 @@
 module github.com/unifio/packer-provisioner-serverspec
 
 require (
-	github.com/hashicorp/hcl/v2 v2.3.0
-	github.com/hashicorp/packer v1.5.4
-	github.com/zclconf/go-cty v1.2.1
-	golang.org/x/crypto v0.0.0-20200117160349-530e935923ad
+	github.com/hashicorp/hcl/v2 v2.6.0
+	github.com/hashicorp/packer v1.6.0
+	github.com/zclconf/go-cty v1.5.0
+	golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9
 )
 
 replace git.apache.org/thrift.git => github.com/apache/thrift v0.0.0-20180902110319-2566ecd5d999