[vala/wip/ci: 14/18] ci: Pin archlinux before glibc bump

[Rico Tzschichholz <ricotz src gnome org>]

commit 6017c15c56e1dbe72f6ff4d77b9a46e3c6a4e4d7
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Fri Feb 26 16:31:21 2021 +0100

    ci: Pin archlinux before glibc bump

 .gitlab-ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7db12681a..982a52bca 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -63,9 +63,9 @@ ubuntu-lts-16-gcc-x86_64:
 
 archlinux-gcc-x86_64:
   stage: build
-  image: archlinux:latest
+  image: archlinux:base-20210214.0.15477
   before_script:
-    - pacman -Syu --noconfirm automake autoconf-archive libtool bison gettext dbus flex git glib2 graphviz 
gobject-introspection gcc make vala
+    - pacman -Syu --noconfirm --ignore glibc automake autoconf-archive libtool bison gettext dbus flex git 
glib2 graphviz gobject-introspection gcc make vala
   script:
     - git fetch --tags
     - ./autogen.sh