[gegl] ci: return true if cleaning paccache fails

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 5008fb6e814fdadf5bf12703771117c73d323259
Author: Øyvind Kolås <pippin gimp org>
Date:   Tue May 5 13:45:50 2020 +0200

    ci: return true if cleaning paccache fails

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 03d1b7b3c..8ae41ea02 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -37,7 +37,7 @@ build-image:
   after_script:
     # Remove all cached packages but the latest version
     - pacman -S --noconfirm --cachedir $PACMAN_CACHE pacman-contrib
-    - paccache -r -k1 --cachedir $PACMAN_CACHE
+    - paccache -r -k1 --cachedir $PACMAN_CACHE || true
 
 .babl-base:
   extends: .pacman-mgr