refactor: install clang tools on demand #566

Job	Run time
Build FreeBSD	4m 1s
Build armv7-unknown-linux-gnueabihf	3m 39s
Build x86_64-apple-darwin	3m 33s
Build x86_64-pc-windows-msvc	5m 25s
Build i686-pc-windows-msvc	9m 12s
Build aarch64-unknown-linux-gnu	4m 3s
Build x86_64-unknown-linux-gnu	3m 27s
Build aarch64-pc-windows-msvc	5m 10s
Build aarch64-apple-darwin	4m 45s
Build aarch64-unknown-linux-musl	3m 54s
Build x86_64-unknown-linux-musl	3m 44s
Test aarch64-pc-windows-msvc - node@20	51s
Test aarch64-pc-windows-msvc - node@22	1m 13s
Test aarch64-apple-darwin - node@22	19s
Test x86_64-pc-windows-msvc - node@22	46s
Test x86_64-unknown-linux-gnu - node@20	18s
Test aarch64-apple-darwin - node@20	21s
Test x86_64-pc-windows-msvc - node@20	39s
Test aarch64-unknown-linux-musl - node@22	37s
Test x86_64-unknown-linux-musl - node@20	20s
Test x86_64-apple-darwin - node@22	1m 11s
Test aarch64-unknown-linux-musl - node@20	28s
Test x86_64-unknown-linux-musl - node@22	24s
Test x86_64-apple-darwin - node@20	49s
Test armv7-unknown-linux-gnueabihf - node@20	42s
Test armv7-unknown-linux-gnueabihf - node@22	49s
Test aarch64-unknown-linux-gnu - node@22	32s
Test aarch64-unknown-linux-gnu - node@20	26s
Test x86_64-unknown-linux-gnu - node@22	23s
Publish	12s
	1h 2m 13s

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