deps.ffmpeg: Switch Windows builds to native build toolchain #237

Job	Run time
Run Pre-Checks	5s
Build FFmpeg for macOS (macos-arm64)	19m 17s
Build FFmpeg for macOS (macos-x86_64)	21m 1s
Build Qt6 (macOS)	8m 16s
Build FFmpeg for Windows (x64)	32m 12s
Build macOS Dependencies (macos-arm64)	7m 37s
Build Qt6 (Windows) (x64, RelWithDebInfo)	2m 47s
Build FFmpeg for Windows (x86)	24m 41s
Build Qt6 (Windows) (x64, Debug)	3m 10s
Build macOS Dependencies (macos-x86_64)	5m 53s
Build Qt6 (Windows) (x86, RelWithDebInfo)	3m 6s
Build Windows Dependencies (x64)	11m 13s
Build Qt6 (Windows) (x86, Debug)	3m 39s
Build Windows Dependencies (x86)	10m 6s
Package Windows Qt6 (x64)	3m 15s
Package Windows Qt6 (x86)	3m 10s
Create macOS Qt6 (macos-arm64)	3m 52s
Create macOS Qt6 (macos-x86_64)	3m 45s
Build macOS Dependencies (Universal)	1m 47s
Build FFmpeg (Universal)	4m 8s
Create and upload release	0s
	2h 53m 0s

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