[MRG] Fix LOG_REQUEST_IDENTIFIERS not applying to Associaton send QR methods

[scaramallion]

Reference issue

Closes #911

Tasks

• Unit tests added that reproduce issue or prove feature is working
• Fix or feature added
• Documentation and examples updated (if relevant)
• Unit tests passing and coverage at 100% after adding fix/feature

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (20993be) to head (ec5cb0c).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #936   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           28        28           
  Lines         8703      8706    +3     
=========================================
+ Hits          8703      8706    +3     

Files	Coverage Δ
pynetdicom/association.py	100.00% <100.00%> (ø)
pynetdicom/service_class.py	100.00% <100.00%> (ø)