Update src/pip/_internal/self_outdated_check.py
Update src/pip/_internal/self_outdated_check.py

Co-Authored-By: Christopher Hunt <d9a07532a38ba527a979ed6c69435aa25ed87c33@gmail.com>
pfmoore/pip,xavfernandez/pip,pradyunsg/pip,sbidoul/pip,pradyunsg/pip,sbidoul/pip,pypa/pip,xavfernandez/pip,xavfernandez/pip,pfmoore/pip,pypa/pip