deps: float v8 patch for WriteUtf8V2 #642

Job	Run time
Build slim tarball	1m 32s
x86_64-linux: with shared libraries	1m 32s
x86_64-darwin: with shared libraries	2h 16m 6s
aarch64-darwin: with shared libraries	2h 17m 11s
aarch64-linux: with shared libraries	1m 33s
	4h 37m 54s

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