[libgda] CI: upload test suite logs artifact on failure

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit b72213bc8f9df9836d9d47ef022d142ec9b2b8b0
Author: Daniel Espinosa <esodan gmail com>
Date:   Tue May 15 19:38:05 2018 -0500

    CI: upload test suite logs artifact on failure

 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c6be85515..db75bef71 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -45,6 +45,7 @@ job_check:
   - make check
   - make install
   artifacts:
+    when: on_failure
     paths:
     - tests/test-suite.log
     expire_in: 1 week