aio: stop has to wait for expirations to finish

[gdamore]

fixes #

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[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 81.93%. Comparing base (71e459e) to head (784bfd6).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/core/aio.c	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1967      +/-   ##
==========================================
+ Coverage   81.88%   81.93%   +0.05%     
==========================================
  Files          95       95              
  Lines       24065    24067       +2     
  Branches     3208     3209       +1     
==========================================
+ Hits        19705    19719      +14     
+ Misses       4286     4275      -11     
+ Partials       74       73       -1     

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