Bump KyleMayes/install-llvm-action from 2.0.0 to 2.0.1 #120

Job	Run time
cargo-publish	0s
macos-docs	1m 33s
macos-test (stable)	1m 51s
ios-check (stable, aarch64-apple-ios)	3m 15s
macos-test (nightly)	1m 57s
ios-check (stable, x86_64-apple-ios)	2m 3s
ios-check (stable, aarch64-apple-ios-sim)	2m 36s
ios-check (nightly, aarch64-apple-ios)	2m 0s
ios-check (nightly, x86_64-apple-ios)	2m 8s
ios-check (nightly, aarch64-apple-ios-sim)	1m 56s
	19m 19s

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