refactor: install clang tools on demand #606

Job	Run time
Build FreeBSD	4m 24s
Build x86_64-pc-windows-msvc	4m 34s
Build x86_64-unknown-linux-musl	3m 25s
Build i686-pc-windows-msvc	4m 40s
Build x86_64-apple-darwin	4m 15s
Build aarch64-unknown-linux-gnu	3m 35s
Build aarch64-apple-darwin	3m 26s
Build aarch64-unknown-linux-musl	3m 46s
Build x86_64-unknown-linux-gnu	3m 17s
Build aarch64-pc-windows-msvc	5m 16s
Build armv7-unknown-linux-gnueabihf	3m 29s
Test aarch64-pc-windows-msvc - node@22	1m 38s
Test x86_64-pc-windows-msvc - node@20	44s
Test aarch64-apple-darwin - node@20	16s
Test aarch64-pc-windows-msvc - node@20	44s
Test x86_64-unknown-linux-gnu - node@22	23s
Test x86_64-unknown-linux-gnu - node@20	14s
Test x86_64-apple-darwin - node@22	1m 10s
Test x86_64-apple-darwin - node@20	1m 5s
Test x86_64-unknown-linux-musl - node@20	24s
Test armv7-unknown-linux-gnueabihf - node@20	39s
Test aarch64-unknown-linux-gnu - node@20	29s
Test aarch64-unknown-linux-gnu - node@22	28s
Test aarch64-unknown-linux-musl - node@22	27s
Test aarch64-unknown-linux-musl - node@20	34s
Test x86_64-pc-windows-msvc - node@22	37s
Test armv7-unknown-linux-gnueabihf - node@22	46s
Test x86_64-unknown-linux-musl - node@22	17s
Test aarch64-apple-darwin - node@22	23s
Publish	17s
	55m 42s

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