device: fixes for socket holds and leaking aio data

[gdamore]

The aio structures need to be finalized, and the sockets should be held until the device is totally finalized to prevent any possible use after free.

fixes #

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.92%. Comparing base (45ad63d) to head (8af6bef).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1977      +/-   ##
==========================================
+ Coverage   81.83%   81.92%   +0.08%     
==========================================
  Files          95       95              
  Lines       24068    24071       +3     
  Branches     3206     3207       +1     
==========================================
+ Hits        19696    19719      +23     
+ Misses       4300     4279      -21     
- Partials       72       73       +1     

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