websocket: inline the aios

[gdamore]

This covers both the ttransport and the supplemental layers.

fixes #

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[codecov]

Codecov Report

Attention: Patch coverage is 97.26027% with 2 lines in your changes missing coverage. Please review.

Project coverage is 81.84%. Comparing base (f8a314e) to head (32c78f7).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/sp/transport/ws/websocket.c	96.55%	1 Missing ⚠️
src/supplemental/websocket/websocket.c	97.72%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1974      +/-   ##
==========================================
- Coverage   81.96%   81.84%   -0.12%     
==========================================
  Files          95       95              
  Lines       24074    24068       -6     
  Branches     3209     3206       -3     
==========================================
- Hits        19732    19699      -33     
- Misses       4269     4298      +29     
+ Partials       73       71       -2     

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