Trigger poezio’s build if this ours succeeded

.gitlab-ci.yml

@@ -1,4 +1,9 @@
+stages:
+  - test
+  - trigger
+
 test:
+  stage: test
   tags:
     - docker
   image: ubuntu:latest
@@ -6,3 +11,11 @@ test:
     - apt update
     - apt install -y python3 cython3 gpg
     - ./run_tests.py
+
+trigger_poezio:
+  stage: trigger
+  tags:
+    - docker
+  image: appropriate/curl:latest
+  script:
+    - curl --request POST -F token="$SLIXMPP_TRIGGER_TOKEN" -F ref=master https://lab.louiz.org/api/v4/projects/18/trigger/pipeline