v3.17.4

🐛 Bug Fixes

• fb360a1 - Remove old tools server from BibXML lookup locations (PR #1004 by @kesara)
  • ↘️ fixes issue #1002 opened by @kesara
• 8cbc6c6 - Switch from appdirs to platformdirs, since it is maintained (PR #1009 by @kitterma)
• f92f551 - Warn when reference uses PIs (PR #1007 by @kesara)
  • ↘️ fixes issue #1006 opened by @kesara
• 393b68b - Reset seen_slugs cache on every prep run (PR #1011 by @jennifer-richards)
• aef14d2 - Add xml extension to BibXML requests (PR #1005 by @kesara)
  • ↘️ fixes issue #1003 opened by @kesara

📝 Documentation Changes

• 5fbc3ce - update CHANGELOG.md + py file versions for v3.17.3 [skip ci] (commit by @kesara)