webrtc: in answer, include codecs that are actually in use

[aler9]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 34.84163% with 144 lines in your changes are missing coverage. Please review.

Project coverage is 53.85%. Comparing base (0ace308) to head (e06a0cc).

Files	Patch %	Lines
internal/protocols/webrtc/outgoing_track.go	0.00%	74 Missing ⚠️
internal/protocols/webrtc/peer_connection.go	42.85%	41 Missing and 7 partials ⚠️
internal/protocols/webrtc/whip_client.go	0.00%	18 Missing ⚠️
internal/servers/webrtc/session.go	87.09%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3374      +/-   ##
==========================================
+ Coverage   53.80%   53.85%   +0.05%     
==========================================
  Files         191      190       -1     
  Lines       18832    18829       -3     
==========================================
+ Hits        10132    10140       +8     
+ Misses       7905     7893      -12     
- Partials      795      796       +1     

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[github-actions]

This issue is mentioned in release v1.8.3 🚀
Check out the entire changelog by clicking here