[gtk/ebassi/ci-only: 2/2] ci: Only run macOS job on upstream branches

[Emmanuele Bassi <ebassi src gnome org>]

commit 195b98f19aaba342305d3289bca98563ce959284
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Jan 7 16:14:04 2021 +0000

    ci: Only run macOS job on upstream branches
    
    Don't run CI on macOS for forks.

 .gitlab-ci.yml | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1c53f4f0f6..1f662c3a7f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -148,6 +148,8 @@ msys2-mingw64:
 
 macos:
   extends: .only-default
+  only:
+    - branches@GNOME/gtk
   stage: build
   tags:
     - macos