test: update WPT for WebCryptoAPI to 42e47329fd #3855

Job	Run time
Build slim tarball	2m 22s
aarch64-linux: with shared libraries	19m 6s
x86_64-linux: with shared libraries	23m 22s
x86_64-darwin: with shared libraries	32m 5s
aarch64-darwin: with shared libraries	19m 43s
	1h 36m 38s

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