Fix phonebook and CoreGroup associated with Association

[Rotheem]

Description

Please explain the changes you made here.

Checklist

• [ ] Created tests which fail without the change (if possible)
• [ ] All tests passing
• [ ] Extended the documentation, if necessary

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 82.69231% with 18 lines in your changes missing coverage. Please review.

Project coverage is 83.16%. Comparing base (9090040) to head (428b76c). Report is 22 commits behind head on main.

Files with missing lines	Patch %	Lines
app/modules/phonebook/cruds_phonebook.py	61.29%	12 Missing :warning:
app/modules/phonebook/endpoints_phonebook.py	89.13%	5 Missing :warning:
app/modules/phonebook/models_phonebook.py	95.00%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #400      +/-   ##
==========================================
- Coverage   83.31%   83.16%   -0.16%     
==========================================
  Files         113      113              
  Lines        8110     8197      +87     
==========================================
+ Hits         6757     6817      +60     
- Misses       1353     1380      +27     

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