New comment by Goorzhel on void-packages repository

https://github.com/void-linux/void-packages/pull/29020#issuecomment-784917705

Comment:
PRs on 86 archs failing with:
```
/usr/bin/python3: No module named pip
error: Command '['/usr/bin/python3', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/tmp/tmpm8_s91ez', '--quiet', 'python-dateutil>=2.8.0']' returned non-zero exit status 1.
```
Consider me stumped. I'll have time later this week to dig into this, though.