fix(ta): use bucket specified in config

[joseph-sentry]

we were previously using the bucket name hard coded in the Django settings instead of using the bucket name specified in the codecov installation config

[codecov-notifications]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
codecov/settings_staging.py	0.00%	1 Missing ⚠️

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[github-actions]

✅ All tests successful. No failed tests were found.

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[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 96.00%. Comparing base (3813d1b) to head (dacfc02).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
codecov/settings_staging.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1034   +/-   ##
=======================================
  Coverage   96.00%   96.00%           
=======================================
  Files         828      828           
  Lines       19353    19353           
=======================================
  Hits        18579    18579           
  Misses        774      774           

Flag	Coverage Δ
unit	92.25% <50.00%> (ø)
unit-latest-uploader	92.25% <50.00%> (ø)

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