CI: Update FFmpeg build action for Windows-based builds #243

Job	Run time
Run Pre-Checks	4s
Build Qt6 (macOS)	9m 58s
Build FFmpeg for Windows (x64)	36m 27s
Build macOS Dependencies (macos-arm64)	5m 46s
Build FFmpeg for Windows (x86)	24m 56s
Build FFmpeg for macOS (macos-arm64)	17m 12s
Build macOS Dependencies (macos-x86_64)	5m 57s
Build FFmpeg for macOS (macos-x86_64)	21m 6s
Build Windows Dependencies (x64)	11m 17s
Build Windows Dependencies (x86)	12m 25s
Build Qt6 (Windows) (x64, RelWithDebInfo)	3m 7s
Build Qt6 (Windows) (x64, Debug)	3m 25s
Build Qt6 (Windows) (x86, RelWithDebInfo)	3m 30s
Build Qt6 (Windows) (x86, Debug)	3m 25s
Package Windows Qt6 (x64)	3m 34s
Package Windows Qt6 (x86)	3m 22s
Build macOS Dependencies (Universal)	2m 3s
Create macOS Qt6 (macos-arm64)	4m 16s
Create macOS Qt6 (macos-x86_64)	4m 46s
Build FFmpeg (Universal)	2m 50s
Create and upload release	0s
	2h 59m 26s

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