[gimp/wip/Jehan/CI-Windows] Trying to find the right package name without even having Arch!

[Jehan <jehanp src gnome org>]

commit 6ba451d76f6d94a7198ef96641dddb7753f55d91
Author: Jehan <jehan girinstud io>
Date:   Wed Sep 25 14:59:55 2019 +0200

    Trying to find the right package name without even having Arch!

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4eb07c9551..0fce681a03 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -34,7 +34,7 @@ cache:
     - pacman -Syu --noconfirm --needed --cachedir "${PACMAN_CACHE}"
         git
         base-devel
-        mingw-w64-x86_64-toolchain
+        mingw-w64-gcc
         python-pip
     - pip3 install --user crossroad