[python-committers] Upgrade Donald Stufft to full committer status

[Nick Coghlan]

With PEP 453 accepted, could Donald please be upgraded to full
committer access for ensurepip maintenance (the initial PEP 453
commits will still go through review on the tracker). (His SSH key is
already on file for PEP updates, so I believe the only actual change
needed is to adjust his status on the issue tracker)

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia