[wing] gitlab: use meson 0.48

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 88d5f8c1c6ee2da972f28cf402e4eb5064bd9356
Author: Ignacio Casal Quinteiro <qignacio amazon com>
Date:   Wed Nov 28 09:55:57 2018 +0100

    gitlab: use meson 0.48

 .gitlab-ci/test-msvc.bat | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci/test-msvc.bat b/.gitlab-ci/test-msvc.bat
index 228e31b..1a453c3 100644
--- a/.gitlab-ci/test-msvc.bat
+++ b/.gitlab-ci/test-msvc.bat
@@ -5,7 +5,7 @@ call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary
 @echo on
 
 :: FIXME: make warnings fatal
-pip3 install --upgrade --user meson==0.47.0  || goto :error
+pip3 install --upgrade --user meson==0.48.0  || goto :error
 meson _build || goto :error
 ninja -C _build || goto :error