chore(deps): Update hashicorp/packer Docker tag to v1.14.1 (terraform-google-modules#212)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

examples/gh-runner-mig-native-packer/cloudbuild.yaml

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 steps:
- - name: "hashicorp/packer:1.11.2"
+ - name: "hashicorp/packer:1.14.1"
  args:
  - build
  - -var