update CI to use gestion hook

.gitlab-ci.yml

@@ -1,17 +1,14 @@
 before_script:
   - apt-get update -qy
-  - apt-get install -y git
-  - gem install dpl
-  - curl https://cli-assets.heroku.com/install.sh | sh
+  - apt-get install -y wget
 
 stages:
   - deploy
 
-deploy_production:
+deploy_validation:
   stage: deploy
   image: ruby:3.0.1
   script:
-    - dpl --provider=heroku --app=$HEROKU_APP_PRODUCTION --api-key=$HEROKU_API_KEY
-    - heroku run bundle exec rails db:migrate --exit-code --app $HEROKU_APP_PRODUCTION
+    - wget --method=POST $HOOK_val 2> /dev/null 1> /dev/null
   only:
     - master