playback: increase sequence number of fMP4 parts

[aler9]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 82.75862% with 20 lines in your changes are missing coverage. Please review.

Project coverage is 55.73%. Comparing base (b64e082) to head (d25aef9).

Files	Patch %	Lines
internal/playback/muxer_fmp4.go	79.72%	9 Missing and 6 partials ⚠️
internal/playback/segment_fmp4.go	78.26%	2 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3200      +/-   ##
==========================================
- Coverage   55.73%   55.73%   -0.01%     
==========================================
  Files         153      154       +1     
  Lines       16902    16917      +15     
==========================================
+ Hits         9421     9429       +8     
- Misses       6739     6743       +4     
- Partials      742      745       +3     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[github-actions]

This issue is mentioned in release v1.7.0 🚀
Check out the entire changelog by clicking here