Major dependencies update

[sainak]

Proposed Changes

• update docker images to 3.12-slim-bookworm
• update django to 5.1.1 (ran django-upgrade to fix deprecated warnings)
• dropped djdt as it is not compatibe with py312
• update dependabot config to create grouped pull request for dependency updates

Merge Checklist

• Tests added/fixed
• Update docs in /docs
• Linting Complete
• Any other necessary step

Only PR's with test cases included and passing lint and test pipelines will be reviewed

@ohcnetwork/care-backend-maintainers @ohcnetwork/care-backend-admins

[codecov]

Codecov Report

Attention: Patch coverage is 94.28571% with 2 lines in your changes missing coverage. Please review.

Project coverage is 64.86%. Comparing base (30395b6) to head (bdaae0c).
Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
care/users/models.py	81.81%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #2449   +/-   ##
========================================
  Coverage    64.85%   64.86%           
========================================
  Files          242      242           
  Lines        13793    13804   +11     
  Branches      1969     1904   -65     
========================================
+ Hits          8946     8954    +8     
- Misses        4471     4472    +1     
- Partials       376      378    +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.