[evince] build: Let flatpak build fail

[Germán Poo-Caamaño <gpoo src gnome org>]

commit f041246ca56e72f0617e1e5c2566618a670281b3
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Wed Mar 30 23:57:48 2022 -0300

    build: Let flatpak build fail
    
    Allow flatpak build fail as a workaround for Gnome's gitlab runners
    failing on permissions.

 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 36502ab0b..f54dbb706 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -50,6 +50,7 @@ flatpak:
         MESON_ARGS: "-Dnautilus=false -Dgtk_doc=false"
         APP_ID: "org.gnome.Evince"
     extends: .flatpak
+    allow_failure: true
 
 nightly:
     dependencies: