[babl] build: add -y parameter to glibc pacman workaround

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

commit 7f484cb8ce2832ec6c225d39aef5d7215ac40f7a
Author: Øyvind Kolås <pippin gimp org>
Date:   Thu Feb 18 20:38:14 2021 +0100

    build: add -y parameter to glibc pacman workaround

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8a7637b08..288b0c150 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -12,7 +12,7 @@ cache:
     paths:
       - _build/meson-logs
   before_script:
-    - pacman -Su --noconfirm https://archive.archlinux.org/packages/g/glibc/glibc-2.33-3-x86_64.pkg.tar.zst
+    - pacman -Syu --noconfirm https://archive.archlinux.org/packages/g/glibc/glibc-2.33-3-x86_64.pkg.tar.zst
     - pacman -Syu --noconfirm --needed --cachedir $PACMAN_CACHE
         base-devel
         git