.github: re-enable rimage workflows #778

Job	Run time
build-linux (mnfst, imx8 imx8x imx8m)	7m 0s
build-windows (imx8 imx8x imx8m)	9m 4s
build-linux (mnfst, mtl)	6m 37s
build-windows (mtl)	7m 48s
build-linux (mnfst, lnl)	7m 45s
build-windows (tgl tgl-h)	9m 8s
build-linux (mnfst, tgl tgl-h)	9m 4s
build-windows (-d, mtl)	8m 44s
build-linux (zmain, imx8 imx8x imx8m)	5m 50s
build-linux (zmain, mtl)	5m 45s
LP64-WIP	5m 56s
build-linux (zmain, lnl)	7m 10s
build-linux (zmain, tgl tgl-h)	7m 34s
build-linux (-d, mnfst, mtl)	5m 47s
manifest-check	49s
compare-linux-win	32s
	1h 44m 33s

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