webrtc: reset recomputed audio PTS if it drifts too much

[aler9]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.78%. Comparing base (c41a88b) to head (08a84a7).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6021      +/-   ##
==========================================
+ Coverage   63.53%   63.78%   +0.24%     
==========================================
  Files         248      248              
  Lines       21609    21644      +35     
==========================================
+ Hits        13730    13805      +75     
+ Misses       6765     6727      -38     
+ Partials     1114     1112       -2     

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