[pygobject/pygobject-3-34] CI: switch to the new win32 powershell runners

[Christoph Reiter <creiter src gnome org>]

commit 3a3aa3baf4654bc3a939553a584e65b012293c6f
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Tue Apr 28 09:22:03 2020 +0200

    CI: switch to the new win32 powershell runners

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index af240626..5fd38d7e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -20,7 +20,7 @@ cache:
 .mingw-defaults: &mingw-defaults
   stage: build_and_test
   tags:
-    - win32
+    - win32-ps
   artifacts:
     paths:
       - coverage/