[calls] ci: Temporarily allow warnings to fix CI build failure

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit 6b3d745f556ec6219d65774bf8e05ed2b07329ed
Author: Evangelos Ribeiro Tzaras <devrtz fortysixandtwo eu>
Date:   Wed Oct 6 13:42:05 2021 +0200

    ci: Temporarily allow warnings to fix CI build failure
    
    See issue #337

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e52c5c22..17a676fc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,7 +16,7 @@ build:native:
     paths:
       - _build
   variables:
-    COMMON_BUILD_OPTS: -Db_coverage=true --werror
+    COMMON_BUILD_OPTS: -Db_coverage=true
     BUILD_OPTS: -Dgtk_doc=true ${COMMON_BUILD_OPTS}
     WANT_BUILD_DEPS: "true"
   except: