ci: enable ffmpeg by default for Windows and Linux x86 targets #2536

Job	Run time
flatpak (su.xash.Engine.Compat.i386)	3m 43s
build (ubuntu-20.04, linux, amd64)	2m 19s
build (ubuntu-20.04, linux, i386)	2m 26s
build (ubuntu-20.04, linux, arm64, true)	3m 54s
build (ubuntu-20.04, linux, armhf, true)	2m 51s
build (ubuntu-20.04, linux, riscv64, true)	2m 40s
build (ubuntu-20.04, linux, ppc64el, true)	3m 8s
build (ubuntu-20.04, android, multiarch)	4m 2s
build (ubuntu-latest, nswitch, arm64)	3m 26s
build (ubuntu-latest, psvita, armv7hf)	3m 22s
build (windows-latest, win32, amd64)	38s
build (windows-2019, win32, i386)	40s
build (macos-14, apple, arm64)	1m 28s
build (macos-13, apple, amd64)	2m 24s
Upload releases	1s
	37m 2s

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