Add new transplant_report task and logic

[Swatinem]

This new task is responsible for copying over the coverage report from one commit to another commit.

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The commits for this feature:

• Add new transplant_report task and logic #1190
• Add a new transplant endpoint codecov-api#1276
• Add a new transplant-report command codecov-cli#677

[seer-by-sentry]

✅ Sentry found no issues in your recent changes ✅

[codecov]

Codecov Report

Attention: Patch coverage is 98.27586% with 1 line in your changes missing coverage. Please review.

Project coverage is 97.70%. Comparing base (00bfa7e) to head (ca076cb).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
tasks/transplant_report.py	87.50%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1190   +/-   ##
=======================================
  Coverage   97.70%   97.70%           
=======================================
  Files         454      457    +3     
  Lines       37032    37089   +57     
=======================================
+ Hits        36182    36238   +56     
- Misses        850      851    +1     

Flag	Coverage Δ
integration	42.81% <34.48%> (-0.02%)	⬇️
unit	90.51% <98.27%> (+0.01%)	⬆️

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[codecov-notifications]

Codecov Report

Attention: Patch coverage is 98.27586% with 1 line in your changes missing coverage. Please review.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
tasks/transplant_report.py	87.50%	1 Missing ⚠️

📢 Thoughts on this report? Let us know!

[joseph-sentry]

why this change?

[Swatinem]

oh, this must be something I forgot to commit in a different PR.
It removes a wrong type, as the totals: ReportLevelTotals down below is wrong.