versions.json: set version to 2.11.99 #663

Job	Run time
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	5m 45s
build-windows (imx8 imx8x imx8m imx8ulp)	9m 18s
LP64-WIP	3m 48s
build-windows (mtl)	7m 16s
build-linux (mnfst, mtl)	4m 31s
build-windows (tgl tgl-h)	8m 3s
manifest-check	53s
build-linux (mnfst, lnl)	4m 11s
build-windows (-d, mtl)	7m 25s
build-linux (mnfst, tgl tgl-h)	5m 16s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	7m 7s
build-linux (zmain, mtl)	4m 15s
build-linux (zmain, lnl)	4m 18s
build-linux (zmain, tgl tgl-h)	5m 3s
build-linux (-d, mnfst, mtl)	4m 39s
build-linux (mnfst, --all)	11m 25s
compare-linux-win	23s
	1h 33m 36s

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