refactor: install clang tools on demand #555

Job	Run time
Build FreeBSD	4m 1s
Build x86_64-unknown-linux-gnu	3m 35s
Build x86_64-pc-windows-msvc	5m 9s
Build aarch64-unknown-linux-gnu	6m 37s
Build aarch64-apple-darwin	2m 52s
Build x86_64-unknown-linux-musl	3m 34s
Build i686-pc-windows-msvc	4m 33s
Build armv7-unknown-linux-gnueabihf	3m 33s
Build x86_64-apple-darwin	3m 1s
Build aarch64-unknown-linux-musl	4m 11s
Build aarch64-pc-windows-msvc	5m 7s
Test aarch64-pc-windows-msvc - node@20	39s
Test aarch64-pc-windows-msvc - node@22	39s
Test x86_64-apple-darwin - node@20	36s
Test x86_64-pc-windows-msvc - node@20	38s
Test x86_64-pc-windows-msvc - node@22	36s
Test aarch64-apple-darwin - node@22	21s
Test x86_64-unknown-linux-musl - node@20	26s
Test aarch64-apple-darwin - node@20	19s
Test x86_64-apple-darwin - node@22	37s
Test x86_64-unknown-linux-gnu - node@22	17s
Test aarch64-unknown-linux-musl - node@20	28s
Test aarch64-unknown-linux-musl - node@22	39s
Test armv7-unknown-linux-gnueabihf - node@22	47s
Test x86_64-unknown-linux-musl - node@22	18s
Test aarch64-unknown-linux-gnu - node@22	35s
Test armv7-unknown-linux-gnueabihf - node@20	47s
Test aarch64-unknown-linux-gnu - node@20	30s
Test x86_64-unknown-linux-gnu - node@20	16s
Publish	1s
	55m 42s

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