[librsvg: 1/4] CI: Run the distcheck job for merge request pipelines

[Marge Bot <marge-bot src gnome org>]

commit eff748c0a332e7d6b4addafde68ca13bddeb693b
Author: Federico Mena Quintero <federico gnome org>
Date:   Fri Jun 10 16:31:13 2022 -0500

    CI: Run the distcheck job for merge request pipelines
    
    Don't want merge requests like the last one where distcheck fails, but
    we only find out later!
    
    Part-of: <https://gitlab.gnome.org/GNOME/librsvg/-/merge_requests/707>

 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 864c55156..e9af15b3c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -365,6 +365,7 @@ distcheck:
       when: manual
       allow_failure: true
     - if: '$CI_PIPELINE_SOURCE == "schedule"'
+    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
 
 reference:
   extends: