[librsvg] CI: Disable the opensuse job

[Jordan Petridis <jpetridis src gnome org>]

commit 00901cb1d6d907f91817962429ff3e7c19e0cf24
Author: Jordan Petridis <jpetridis gnome org>
Date:   Thu Nov 22 12:59:29 2018 +0000

    CI: Disable the opensuse job
    
    Opensuse hasn't upgraded rustc for a couple months now.
    
    Should re-enable once this is fixed.

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bc6f4957..0b1e04a4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -160,7 +160,7 @@ fedora:rawhide:
   <<: *distro_test
   <<: *stage_2
 
-opensuse:tumbleweed:
+.opensuse:tumbleweed:
   image: $AMD64_OPENSUSE_TUMBLEWEED
   variables:
     LIBRSVG_DEBUG: "yes"