refactor: install clang tools on demand #591

Job	Run time
Build FreeBSD	4m 21s
Build x86_64-apple-darwin	3m 21s
Build aarch64-unknown-linux-musl	4m 34s
Build aarch64-apple-darwin	2m 41s
Build aarch64-unknown-linux-gnu	3m 35s
Build aarch64-pc-windows-msvc	3m 9s
Build x86_64-unknown-linux-musl	4m 31s
Build armv7-unknown-linux-gnueabihf	3m 34s
Build x86_64-unknown-linux-gnu	3m 27s
Build x86_64-pc-windows-msvc	4m 51s
Build i686-pc-windows-msvc	4m 53s
Test aarch64-apple-darwin - node@22	19s
Test aarch64-pc-windows-msvc - node@20	46s
Test x86_64-apple-darwin - node@22	1m 0s
Test aarch64-pc-windows-msvc - node@22	47s
Test x86_64-pc-windows-msvc - node@20	44s
Test x86_64-unknown-linux-musl - node@22	18s
Test aarch64-apple-darwin - node@20	24s
Test x86_64-unknown-linux-musl - node@20	28s
Test x86_64-pc-windows-msvc - node@22	43s
Test x86_64-apple-darwin - node@20	45s
Test aarch64-unknown-linux-musl - node@22	33s
Test aarch64-unknown-linux-gnu - node@22	29s
Test x86_64-unknown-linux-gnu - node@22	22s
Test armv7-unknown-linux-gnueabihf - node@22	50s
Test aarch64-unknown-linux-musl - node@20	28s
Test armv7-unknown-linux-gnueabihf - node@20	49s
Test aarch64-unknown-linux-gnu - node@20	24s
Test x86_64-unknown-linux-gnu - node@20	14s
Publish	15s
	53m 35s

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