Add debug logs to investigate crashing fra-ai

[leszko]

What does this pull request do? Explain your changes. (required)

Specific updates (required)

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Does this pull request close any open issues?

Checklist:

• Read the contribution guide
• make runs successfully
• All tests in ./test.sh pass
• README and other documentation updated
• Pending changelog updated

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 45 lines in your changes missing coverage. Please review.

Project coverage is 33.69298%. Comparing base (b026313) to head (2df074b).

Files with missing lines	Patch %	Lines
cmd/livepeer_ffmpeg/livepeer_ffmpeg.go	0.00000%	21 Missing ⚠️
media/rtmp2segment.go	0.00000%	13 Missing ⚠️
media/mediamtx.go	0.00000%	11 Missing ⚠️

Additional details and impacted files

@@                 Coverage Diff                 @@
##              master       #3346         +/-   ##
===================================================
- Coverage   33.72537%   33.69298%   -0.03239%     
===================================================
  Files            141         142          +1     
  Lines          37411       37444         +33     
===================================================
- Hits           12617       12616          -1     
- Misses         24073       24107         +34     
  Partials         721         721                 

Files with missing lines	Coverage Δ
media/mediamtx.go	0.00000% <0.00000%> (ø)
media/rtmp2segment.go	0.00000% <0.00000%> (ø)
cmd/livepeer_ffmpeg/livepeer_ffmpeg.go	0.00000% <0.00000%> (ø)

... and 1 file with indirect coverage changes

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Files with missing lines	Coverage Δ
media/mediamtx.go	0.00000% <0.00000%> (ø)
media/rtmp2segment.go	0.00000% <0.00000%> (ø)
cmd/livepeer_ffmpeg/livepeer_ffmpeg.go	0.00000% <0.00000%> (ø)

... and 1 file with indirect coverage changes