[glib/wip/xclaesse/ci-windows-docker] TMP

[Xavier Claessens <xclaesse src gnome org>]

commit 393e128897356dcfa9a7c88cf02332308e6072db
Author: Xavier Claessens <xavier claessens collabora com>
Date:   Thu Jan 16 11:38:57 2020 -0500

    TMP

 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b82bd96bd..d7567c7f9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -283,6 +283,7 @@ vs2017-x64:
     # 
https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_preference_variables?view=powershell-6
     - $ErrorActionPreference = "Stop"
     - cp -r C:/subprojects/* subprojects/
+    - pip install --upgrade meson
     # For some reason, options are separated by newline instead of space, so we
     # have to replace them first.
     - $env:MESON_COMMON_OPTIONS = $env:MESON_COMMON_OPTIONS.replace("`n"," ")