west.yml: update zephyr to 7fa8bf17563 #19506

Job	Run time
LP64-WIP	4m 1s
manifest-check	52s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	6m 1s
build-windows (imx8 imx8x imx8m imx8ulp)	9m 4s
build-linux (mnfst, mtl)	4m 47s
build-windows (mtl)	6m 8s
build-linux (mnfst, lnl)	4m 16s
build-windows (tgl tgl-h)	6m 5s
build-linux (mnfst, tgl tgl-h)	5m 26s
build-windows (-d, mtl)	5m 14s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	5m 47s
build-linux (zmain, mtl)	4m 29s
build-linux (zmain, lnl)	4m 15s
build-linux (zmain, tgl tgl-h)	5m 23s
build-linux (-d, mnfst, mtl)	4m 30s
build-linux (mnfst, --all)	12m 33s
compare-linux-win	24s
	1h 29m 15s

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