[gdk-pixbuf] CI: Switch to the new win32 runners

[Christoph Reiter <creiter src gnome org>]

commit ae582413f6ec587be0fe65fe77e975f7dbde0ef9
Author: Christoph Reiter <creiter src gnome org>
Date:   Sun May 3 16:11:58 2020 +0200

    CI: Switch to the new win32 runners
    
    powershell instead of cmd, win2016 instead of 2012r2

 .gitlab-ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b3957070f..326917703 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -24,7 +24,7 @@ meson-fedora-x86_64:
 msys2-mingw64:
   stage: build
   tags:
-    - win32
+    - win32-ps
   variables:
     MSYSTEM: "MINGW64"
     CHERE_INVOKING: "yes"
@@ -32,7 +32,7 @@ msys2-mingw64:
     - C:\msys64\usr\bin\pacman --noconfirm -Syyuu
     - C:\msys64\usr\bin\bash -lc "bash -x ./.gitlab/ci/test-msys2.sh"
   artifacts:
-    name: "gdk-pixbuf-%CI_JOB_NAME%-%CI_COMMIT_REF_NAME%"
+    name: "gdk-pixbuf-${env:CI_JOB_NAME}-${env:CI_COMMIT_REF_NAME}"
     when: always
     paths:
       - _build/meson-logs