west.yml: update Zephyr to ceff785434b #17125

Job	Run time
LP64-WIP	4m 2s
manifest-check	50s
build-windows (imx8 imx8x imx8m imx8ulp)	7m 46s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	5m 22s
build-linux (mnfst, mtl)	4m 29s
build-windows (mtl)	6m 4s
build-linux (mnfst, lnl)	4m 45s
build-windows (tgl tgl-h)	7m 1s
build-linux (mnfst, tgl tgl-h)	5m 46s
build-windows (-d, mtl)	5m 50s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	5m 16s
build-linux (zmain, mtl)	4m 25s
build-linux (zmain, lnl)	4m 18s
build-linux (zmain, tgl tgl-h)	5m 12s
build-linux (-d, mnfst, mtl)	4m 29s
compare-linux-win	20s
	1h 15m 55s

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