12.76.0

✨ New Features

• 30b3da7 - validate ExtResource more completely (PR #11759 by @jennifer-richards)
• bbd3a86 - account migration apis (PR #11760 by @rjsparks)
• eec710d - dynamic App API tokens (PR #11670 by @jennifer-richards)
• c364d9b - choose the sessions a material upload applies to (PR #11772 by @rjsparks)
  • ↘️ addresses issue #9143 opened by @jennifer-richards
  • ↘️ addresses issue #10583 opened by @jennifer-richards

🐛 Bug Fixes

• 7e9eeea - apply materials only to a group's scheduled sessions (PR #11770 by @rjsparks)
  • ↘️ fixes issue #10579 opened by @jennifer-richards
• 1990f5c - migrate missing registration records (PR #11288 by @rpcross)

♻️ Refactors

• f4a39b2 - require an explicit UTC offset on API datetime fields (PR #11738 by @rjsparks)
• 9b7ab55 - directly generate correct names.json fixture (PR #11773 by @jennifer-richards)

✅ Tests

• bec77a2 - harden group tests against random failure (PR #11763 by @jennifer-richards)
• c5554fd - harden a couple more escaped-name checks (PR #11765 by @jennifer-richards)
• 34bd4ed - avoid random fails from ipr factories (PR #11775 by @jennifer-richards)

🔧 Chores

• 0faad28 - update names.json fixture (PR #11774 by @jennifer-richards)
• 282681a - remove the sync discrepancies view (PR #11777 by @rjsparks)
  • ↘️ addresses issue #5141 opened by @rjsparks