chore: update Django to 4.2.7 for Quince - Security Patch

[magajh]

Description

This PR updates Django to version 4.2.7 in the Quince release branch. The update includes the latest security patch, as part of the BTR working group's ongoing efforts to ensure the security of Open edX's supported named releases.

For more information, see: openedx/wg-build-test-release#324

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[mphilbrick211]

Hi @magajh! Just flagging a failing test here.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (bc09c56) 97.51% compared to head (58059e6) 97.51%.

Additional details and impacted files

@@                     Coverage Diff                     @@
##           open-release/quince.master     #695   +/-   ##
===========================================================
  Coverage                       97.51%   97.51%           
===========================================================
  Files                              53       53           
  Lines                            3023     3023           
  Branches                          266      266           
===========================================================
  Hits                             2948     2948           
  Misses                             63       63           
  Partials                           12       12           

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[magajh]

done @mphilbrick211, thanks!

[mphilbrick211]

HI @openedx/2u-cosmonauts! This is ready for review. Thanks!

[cmltaWt0]

Tested by local docker build. Merging.

[openedx-webhooks]

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