[gtk/revert-82ab039a] Revert "Merge branch 'disable-macos-ci' into 'master'"

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit 0ce0402edfb3698d4b0463e7df863e08035a94e7
Author: Bartłomiej Piotrowski <bpiotrowski gnome org>
Date:   Fri Feb 12 19:40:57 2021 +0000

    Revert "Merge branch 'disable-macos-ci' into 'master'"
    
    This reverts merge request !3183

 .gitlab-ci.yml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8476616092..edde8904aa 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -146,9 +146,7 @@ msys2-mingw64:
     MSYSTEM: "MINGW64"
     CHERE_INVOKING: "yes"
 
-# FIXME: Temporarily disabled while the macOS runner is offline
-# See https://gitlab.gnome.org/Infrastructure/GitLab/-/issues/495
-.macos:
+macos:
   extends: .only-default
   only:
     - branches@GNOME/gtk