Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -17,3 +17,10 @@ deploy_job:
         - TWINE_PASSWORD=${CI_JOB_TOKEN} TWINE_USERNAME=gitlab-ci-token python -m twine upload --repository-url https://www.ict.inaf.it/gitlab/api/v4/projects/${CI_PROJECT_ID}/packages/pypi dist/*
     rules:
         - if: $CI_COMMIT_TAG
+
+update_service:
+    stage: .post
+    trigger:
+        project: ci-intro/coords-service
+    rules:
+        - if: $CI_COMMIT_TAG