Upgrade setup-ffmpeg + fix loudnorm failing on ffmpeg 6+ [BDGR-168]

[markspolakovs]

Fixes BDGR-168

[github-actions]

	Warnings
⚠️	No Linear ticket found. Please include one in either the pull request title (e.g. [BDGR-123] Fix something), the description (Fixes BDGR-123.), or the branch name (bow-123-fix-something).

Generated by 🚫 dangerJS against 9ec2b90

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 70.58824% with 5 lines in your changes missing coverage. Please review.

Project coverage is 22.16%. Comparing base (1678855) to head (9ec2b90).

Files	Patch %	Lines
jobrunner/src/jobs/ProcessMediaJob.ts	70.58%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #468      +/-   ##
==========================================
+ Coverage   22.04%   22.16%   +0.12%     
==========================================
  Files          96       96              
  Lines        3602     3614      +12     
  Branches      605      604       -1     
==========================================
+ Hits          794      801       +7     
- Misses       2659     2812     +153     
+ Partials      149        1     -148     

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