ci: Update AppVeyor's MSVC script
We depend on a newer version of Meson, but let's use the latest stable
to give us some leeway.
mkdir _build
mkdir graphene-shared-%MSVC_PLATFORM%
cd _build
-curl -LsSO https://github.com/mesonbuild/meson/releases/download/0.47.1/meson-0.47.1.tar.gz
-7z x meson-0.47.1.tar.gz
-move dist\meson-0.47.1.tar .
-7z x meson-0.47.1.tar
+curl -LsSO https://github.com/mesonbuild/meson/releases/download/0.49.0/meson-0.49.0.tar.gz
+7z x meson-0.49.0.tar.gz
+move dist\meson-0.49.0.tar .
+7z x meson-0.49.0.tar
rmdir dist
-del meson-0.47.1.tar meson-0.47.1.tar.gz
+del meson-0.49.0.tar meson-0.49.0.tar.gz
curl -LsSO https://github.com/ninja-build/ninja/releases/download/v1.7.2/ninja-win.zip
7z x ninja-win.zip
del ninja-win.zip
@@ -19,7 +19,7 @@ cd ..
cd _build
call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %MSVC_PLATFORM%
@echo on
-C:\Python36\python.exe meson-0.47.1\meson.py .. . --backend=ninja --prefix=%APPVEYOR_BUILD_FOLDER%\graphene-shared-%MSVC_PLATFORM% || goto :error
+C:\Python36\python.exe meson-0.49.0\meson.py .. . --backend=ninja --prefix=%APPVEYOR_BUILD_FOLDER%\graphene-shared-%MSVC_PLATFORM% || goto :error
ninja || goto :error
ninja test || goto :error
ninja install || goto :error
