[DNM] west.yaml: Use Zephyr main #107

Job	Run time
LP64-WIP	3m 38s
manifest-check	50s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	4m 47s
build-windows (imx8 imx8x imx8m imx8ulp)	8m 23s
build-linux (mnfst, mtl)	4m 22s
build-windows (mtl)	7m 1s
build-linux (mnfst, lnl)	4m 11s
build-windows (tgl tgl-h)	7m 33s
build-linux (mnfst, tgl tgl-h)	5m 11s
build-windows (-d, mtl)	7m 18s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	4m 49s
build-linux (zmain, mtl)	4m 13s
build-linux (zmain, lnl)	4m 7s
build-linux (zmain, tgl tgl-h)	5m 0s
build-linux (-d, mnfst, mtl)	4m 21s
compare-linux-win	1m 33s
	1h 17m 17s

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