Bump django from 4.2.16 to 5.1.6

[dependabot[bot]]

Bumps django from 4.2.16 to 5.1.6.

Commits

• 8c9973c [5.1.x] Bumped version for 5.1.6 release.
• df27e43 [5.1.x] Added release date for 5.1.6, 5.0.12, and 4.2.19.
• 4a04944 [5.1.x] Clarified docs for default email value in UserManager.create_user().
• b814f4c [5.1.x] Refs #35612 -- Extended docs on how the security team evaluates reports.
• 328d54f [5.1.x] Refs #36140 -- Added missing import in django/contrib/auth/forms.py.
• 8552eef [5.1.x] Fixed #36140 -- Allowed BaseUserCreationForm to define non required p...
• 76b4fb7 [5.1.x] Fixed #36162 -- Fixed the black Makefile docs rule to work on macOS.
• 173edeb [5.1.x] Corrected ArrayAgg example for ordering usage.
• 4f0169e [5.1.x] Tweaked docs to avoid reformatting given new black version.
• 9d1945d [5.1.x] Clarified the Releaser's discretion for determining and postponing th...
• Additional commits viewable in compare view

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