Fix pip upgrade on Windows

pquentin · pquentin · commit ce69cb5c827b · 2022-07-22T14:48:34.000+02:00
diff --git a/ci.sh b/ci.sh
@@ -4,7 +4,7 @@ set -ex
 
 BLACK_VERSION=22.6.0
 
-pip install -U pip setuptools wheel
+python -m pip install -U pip setuptools wheel
 
 python setup.py sdist --formats=zip
 pip install dist/*.zip
