fix(async): abortableAsyncIterable() should call .return() on the generator once aborted

[raaymax]

Fixes #3518

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.48%. Comparing base (9253dcb) to head (6df92f7).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5560   +/-   ##
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  Coverage   96.48%   96.48%           
=======================================
  Files         465      465           
  Lines       37759    37764    +5     
  Branches     5579     5580    +1     
=======================================
+ Hits        36432    36437    +5     
  Misses       1285     1285           
  Partials       42       42           

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[iuioiua]

Apologies for the delay, and thank you for contributing! LGTM.

[iuioiua]

I realise that return() should be called in a finally block, and throw() should be called in a catch block.

[raaymax]

Ach yes, there is missing part but it's not just that. I created new PR that handles this one.