Merge pull request #495 from stackhpc/fix/nightly-img-version-v2

Fix nightly build version (v2)

Author: wtripp180901

.github/workflows/nightlybuild.yml

@@ -83,7 +83,7 @@ jobs:
           -var-file=$PKR_VAR_environment_root/${{ env.CI_CLOUD }}.pkrvars.hcl \
           -var "source_image_name=${{ matrix.build.source_image_name }}" \
           -var "image_name=${{ matrix.build.image_name }}" \
-          -var "image_name_version="\
+          -var "image_name_version=" \
           -var "inventory_groups=${{ matrix.build.inventory_groups }}" \
           openstack.pkr.hcl