**What**
* [ ] rename cli/ directory to maintenance/
* [ ] update modules/profile/manifests/mediawiki/maintenance/purge_securepoll.pp cron job in puppet repo: https://codesearch.wmcloud.org/puppet/?q=SecurePoll%2Fcli%2F&files=&excludeFiles=&repos=
* [ ] replace "cli/" with "maintenance/" in the document https://wikitech.wikimedia.org/wiki/SecurePoll
* [ ] replace "cli/" with "maintenance/" in https://www.mediawiki.org/wiki/Extension:SecurePoll
* [ ] replace "cli/" with "maintenance/" in the internal document "handbook of running global elections" at https://docs.google.com/document/d/1uyaJk5ZA1RWH-iuUFKTZbnG_wwKM-Hw4q8_jQ84N8cA/edit?tab=t.0#heading=h.i7q0oqet2m2n (I don't have access so someone else would need to do it)
**Why**
* so commands such as `docker compose exec mediawiki php maintenance/run.php SecurePoll:migrateTallies` work correctly and don't give the following error: `Script 'SecurePoll:migrateTallies' not found (tried path '/var/www/html/w/extensions/SecurePoll/maintenance/migrateTallies.php' and class 'MediaWiki\Extension\SecurePoll\Maintenance\migrateTallies').`