[evince/wip/gpoo/update-registry] ci: Use newer image

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

commit f4361c2e49fee8b6bea5cae4f75f50026d09e0e0
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Mon Feb 28 20:16:51 2022 -0300

    ci: Use newer image
    
    Image containing Poppler 22.02, the latest Poppler version that contains
    fixes with immediate positive impact for Evince.
    The new CI image also contains libarchive 3.6.0, which will help remove
    code from Evince and facilitate the maintenance of the comics backend.

 .gitlab-ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bed27b3e8..78db69197 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,8 +7,8 @@ stages:
 variables:
     BUNDLE: "org.gnome.Evince.flatpak"
 
-master:
-    image: registry.gitlab.gnome.org/gnome/evince/master-amd64:latest
+meson-main:
+    image: registry.gitlab.gnome.org/gnome/evince/ubuntu-x86_64:poppler
     stage: build
     when: manual