deps: update acorn to 8.16.0 #3559

Job	Run time
Build slim tarball	2m 49s
aarch64-darwin: with shared libraries	23m 30s
aarch64-linux: with shared libraries	21m 30s
x86_64-linux: with shared libraries	28m 22s
x86_64-darwin: with shared libraries	42m 57s
	1h 59m 8s

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