ci: enable ffmpeg by default for Windows and Linux x86 targets #2538

Job	Run time
flatpak (su.xash.Engine.Compat.i386)	3m 47s
build (ubuntu-20.04, linux, amd64)	2m 47s
build (ubuntu-20.04, linux, i386)	2m 47s
build (ubuntu-20.04, linux, arm64, true)	3m 1s
build (ubuntu-20.04, linux, armhf, true)	3m 29s
build (ubuntu-20.04, linux, riscv64, true)	2m 37s
build (ubuntu-20.04, linux, ppc64el, true)	3m 46s
build (ubuntu-20.04, android, multiarch)	4m 21s
build (ubuntu-latest, nswitch, arm64)	3m 17s
build (ubuntu-latest, psvita, armv7hf)	3m 14s
build (windows-latest, win32, amd64)	1m 34s
build (windows-2019, win32, i386)	1m 49s
build (macos-14, apple, arm64)	1m 31s
build (macos-13, apple, amd64)	2m 33s
Upload releases	1s
	40m 34s

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