[librsvg] CI: disable tests based on debian tests

[Jordan Petridis <jpetridis src gnome org>]

commit afbef7d53571e116cca1c02dc12501ca9345a3b6
Author: Jordan Petridis <jpetridis gnome org>
Date:   Tue Sep 4 22:41:36 2018 +0300

    CI: disable tests based on debian tests
    
    gdk-pibuf-loader is no longer loaded into PATH in debian testing
    
    This is temprary till #331 is fixed.

 .gitlab-ci.yml | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4865aa92..1093ad63 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -162,14 +162,14 @@ opensuse:tumbleweed:
   <<: *distro_test
   <<: *stage_2
 
-debian:testing:
+.debian:testing:
   image: $AMD64_DEBIAN_TESTING
   variables:
     LIBRSVG_DEBUG: "yes"
   <<: *distro_test
   <<: *stage_2
 
-debian_i386:testing:
+.debian_i386:testing:
   image: $I386_DEBIAN_TESTING
   variables:
     LIBRSVG_DEBUG: "yes"
@@ -187,7 +187,7 @@ fedora:test_release:
   <<: *distro_test
   <<: *stage_3
 
-debian:testing_release_i386:
+.debian:testing_release_i386:
   image: $I386_DEBIAN_TESTING
   variables:
     LIBRSVG_DEBUG: "no"
@@ -197,21 +197,21 @@ debian:testing_release_i386:
 # STAGE 3 RUSTC TESTS
 #######################################################################
 
-rustc 1.26 1:
+.rustc 1.26 1:
   image: $RUSTC_1_26
   variables:
     LIBRSVG_DEBUG: "yes"
   <<: *rustc
   <<: *stage_3
 
-rustc 1.27 2:
+.rustc 1.27 2:
   image: $RUSTC_1_27
   variables:
     LIBRSVG_DEBUG: "yes"
   <<: *rustc
   <<: *stage_3
 
-rustc 1.28 3:
+.rustc 1.28 3:
   image: $RUSTC_1_28
   variables:
     LIBRSVG_DEBUG: "yes"