[dia] CI: Switch to new Windows runners

[Zander <zbrown src gnome org>]

commit 5248c4f8a571f6536d8dfb0703ec550121a628b7
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Fri May 1 14:47:47 2020 +0200

    CI: Switch to new Windows runners
    
    win32-ps instead of win32.
    Uses powershell instead of cmd and Windows 2016 instead fo 2020r2
    
    The old runners will be switched of in teh comming weeks

 .gitlab-ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bb490461..2a71a5d2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -39,12 +39,12 @@ nightly:
 .mingw-defaults: &mingw-defaults
     stage: win32_build
     tags:
-        - win32
+        - win32-ps
     script:
         - C:\msys64\usr\bin\pacman --noconfirm -Syyuu
         - C:\msys64\usr\bin\bash -lc "bash -x ./.gitlab-ci/msys.sh"
     cache:
-        key: "%CI_JOB_NAME%"
+        key: "${env:CI_JOB_NAME}"
         <<: *cache-paths
 
 msys2-mingw32: