west.yml: update zephyr to 4aa1ac9f969 #20443

Job	Run time
LP64-WIP	4m 3s
manifest-check	53s
build-linux (mnfst, mtl lnl)	5m 55s
build-linux (mnfst, tgl tgl-h)	5m 29s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	6m 40s
build-linux (zmain, mtl lnl)	5m 37s
build-windows (ptl)	6m 19s
build-windows (imx8 imx8x imx8m imx8ulp)	9m 4s
build-linux (zmain, ptl)	4m 40s
build-linux (mnfst, --all)	14m 27s
build-linux (zmain, tgl tgl-h)	5m 28s
build-linux (-d, mnfst, lnl)	4m 35s
build-windows (tgl tgl-h)	6m 37s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	7m 7s
build-linux (mnfst, ptl)	4m 38s
build-windows (-d, lnl)	6m 9s
build-windows (mtl lnl)	8m 2s
compare-linux-win	36s
	1h 46m 19s

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