Allow Teraform state deletion with a CI Job Token (maintainer)

What does this MR do and why?

This change allows to delete Teraform state from CI with the $CI_JOB_TOKEN. Requires maintainer permissions. Fixes: #375242

How to set up and validate locally

Tested locally with a repo in a gdk setup.

.gitlab-ci.yml

include:
  template: Terraform.latest.gitlab-ci.yml


delete:
  image: curlimages/curl
  script:
    - 'curl --header "Job-Token: ${CI_JOB_TOKEN}" --request DELETE "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/terraform/state/default"'

main.tf

terraform {
  backend "http" {
  }
}

resource "random_pet" "main" {
  length = 2
}

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.