appveyor: Upgrade pip.
To avoid all those warnings.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6184>
diff --git a/.appveyor/appveyor_msvc.bat b/.appveyor/appveyor_msvc.bat
index 1ff4fa6..67ef364 100644
--- a/.appveyor/appveyor_msvc.bat
+++ b/.appveyor/appveyor_msvc.bat
@@ -2,9 +2,10 @@
:install
rem Check pip
+python --version
+python -m pip install --upgrade pip
+python -m pip --version
if "%buildsystem%" == "scons" (
- python --version
- python -m pip --version
rem Install Mako
python -m pip install Mako==1.0.7
rem Install pywin32 extensions, needed by SCons
@@ -15,7 +16,6 @@
python -m pip install scons==3.0.1
call scons --version
) else (
- python --version
python -m pip install Mako meson
meson --version
