jekyll: curl fail if http code is 400 or greater

- fixes: pipeline does not fail when API call returns 404

ci-jekyll-gl_pages-primary.yml

@@ -29,7 +29,7 @@ deploy_preprod:
   image: curlimages/curl
   script: # Trigger $CI_SECONDARY_PROJECT_ID (defined in CI/CD Settings Variables)
   - >
-    curl --request POST
+    curl --fail-with-body --request POST
     --form "token=$CI_JOB_TOKEN"
     --form ref=master
     --form "variables[CI_REMOTE_PROJECT_ID]=$CI_PROJECT_ID"