FIx Matrix*x4_LoadIdentity (xash3d_mathlib.h) #2658

Job	Run time
build (ubuntu-20.04, linux, amd64)	3m 30s
flatpak (su.xash.Engine.Compat.i386)	4m 7s
build (ubuntu-20.04, linux, i386)	3m 39s
build (ubuntu-20.04, linux, arm64, true)	4m 21s
build (ubuntu-20.04, linux, armhf, true)	4m 4s
build (ubuntu-20.04, linux, riscv64, true)	3m 52s
build (ubuntu-20.04, linux, ppc64el, true)	3m 59s
build (ubuntu-20.04, android, multiarch)	10m 56s
build (ubuntu-latest, nswitch, arm64)	3m 26s
build (ubuntu-latest, psvita, armv7hf)	8m 8s
build (windows-latest, win32, amd64)	3m 2s
build (windows-2019, win32, i386)	2m 39s
build (macos-14, apple, arm64)	1m 29s
build (macos-13, apple, amd64)	2m 15s
Upload releases	49s
	1h 0m 16s

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