Deploy 2026-02-05

[chigby]

Deploy changelog

• Update Django and Wagtail to the latest versions (4.2.x and 6.3.x respectively).

Pre-deploy Checklist

• Verify basic CMS functionality (saving drafts, publishing changes) across content types
• Verify Incident Export works
• Incident search
  • Verify all the filters in Incident Search page works
  • Verify categories based filtering works
  • Verify search box features are functional
• Verify "Submit an Incident" form submits without errors
• Verify the email signup in footer works
• Topic page
  • Verify data viz loads
  • Verify incident info loads
• Verify category pages load correctly

Additional QA notes

Anything else that might be needed to be QA'd specific to this particular deploy.