Update task.py get_custom_headers missing 'compression' key

[auvipy]

to address #8625

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (8e5efc2) 87.33% compared to head (299ea0d) 87.33%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8633   +/-   ##
=======================================
  Coverage   87.33%   87.33%           
=======================================
  Files         148      148           
  Lines       18515    18515           
  Branches     3163     3163           
=======================================
  Hits        16170    16170           
  Misses       2060     2060           
  Partials      285      285           

Flag	Coverage Δ
unittests	87.30% <100.00%> (ø)

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Files	Coverage Δ
celery/app/task.py	95.35% <100.00%> (ø)

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[Nusnus]

Seems legit but can we add some tests maybe?

[auvipy]

Seems legit but can we add some tests maybe?

All modified and coverable lines are covered by tests ✅ but I'm not fully sure what test to add. have to check tomorrow