Expose test artifacts to the Gitlab CI interface

Make tests generate JUnit artifacts and expose them to the Gitlab CI UI.

.gitlab-ci.yml

@@ -42,6 +42,8 @@ variables:
     when: on_failure
     expire_in: 1 week
     name: "${CI_JOB_NAME}_${CI_COMMIT_REF_SLUG}_${CI_COMMIT_SHORT_SHA}"
+    reports:
+      junit: pytest.xml
     paths:
       - "${BUILD_DIR}/ansible.log"
       - "${BUILD_DIR}/logs"