Removes an exception that prevented stable CI builds

* This prevents CI from constructing a pipeline for stable branches,
let's fix that situation

.gitlab/ci/review.gitlab-ci.yml

 .except-deploys:
   except:
     refs:
-      - /^[\d-]+-stable(-ee)?$/
       - /^\d+-\d+-auto-deploy-\d+$/
 
 .review-docker: