Pin older `cryptography` version that doesn't require rust.
Fixes the `pip.py` example on Alpine.
@@ -52,7 +52,7 @@ pip.virtualenv(
# use that virtualenv to install pyinfra
pip.packages(
name='Install pyinfra into a virtualenv',
- packages='pyinfra',
+ packages=['pyinfra', 'cryptography==3.3.2'],
virtualenv='/usr/local/bin/venv',
)
