Ditch the BUILD for the CI_COMMIT_TAG var

.gitlab-ci-build.yml.in

@@ -63,7 +63,7 @@ hyperv-iso.amd64:
     COMMAND: >
       packer build ${only}
       -var-file="${distro}"
-      -var build=${BUILD}
+      -var build=${CI_COMMIT_TAG}
       -var cpus=2
       -var memory=4096
       ${EXCEPT}
@@ -90,5 +90,5 @@ hyperv-iso.amd64:
     tag_name: '$CI_COMMIT_TAG'
     description: >-
       Release $CI_COMMIT_TAG, found on [Vagrant Cloud](https://app.vagrantup.com/boxen/)
-      as version v${BUILD}
+      as version v${CI_COMMIT_TAG}
     

sources/inputs.pkr.hcl

@@ -46,7 +46,7 @@ variable "vagrant_cloud_token" {
 
 variable "build" {
   type    = string
-  default = "0.1"
+  default = env("CI_COMMIT_TAG")
 }
 
 variable "cd_content" {