[gtk/no-werror-on-stable] ci: Turn off -Werror on stable branches

[Matthias Clasen <matthiasc src gnome org>]

commit 89e2b98ff4521a4625c2da0652593e767976706e
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Nov 10 13:37:04 2021 -0500

    ci: Turn off -Werror on stable branches
    
    Otherwise we incur build failures such as the
    recent one from new Pango api.

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7bb81176b9..42aafa312c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -21,7 +21,7 @@ stages:
 
 # Common variables
 variables:
-  COMMON_MESON_FLAGS: "-Dwerror=true -Dglib:werror=false -Dpango:werror=false -Dgtk-doc:werror=false 
-Dwayland-protocols:werror=false -Dsysprof:werror=false"
+  COMMON_MESON_FLAGS: "-Dwerror=false"
   BACKEND_FLAGS: "-Dx11-backend=true -Dwayland-backend=true -Dbroadway-backend=true"
   FEATURE_FLAGS: "-Dvulkan=enabled -Dcloudproviders=enabled"
   MESON_TEST_TIMEOUT_MULTIPLIER: 3