deps: update merve to 1.2.0 #4075

Job	Run time
Build slim tarball	2m 15s
aarch64-linux: with shared libraries	18m 21s
x86_64-linux: with shared libraries	22m 45s
x86_64-darwin: with shared libraries	30m 23s
aarch64-darwin: with shared libraries	23m 5s
	1h 36m 49s

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