Install clang-scan-deps tool #1088

Job	Run time
prepare	6s
macos	3h 7m 53s
linux	2h 12m 17s
linux-asserts	0s
msys2 (mingw64)	2h 6m 56s
msys2 (clang64)	1h 45m 51s
linux-test-cross-build-ffmpeg	0s
linux-cross-aarch64	2h 16m 0s
linux-cross-windows (i686, ucrt)	2h 58m 1s
linux-cross-windows (x86_64, ucrt)	3h 2m 37s
linux-cross-windows (armv7, ucrt)	2h 55m 44s
linux-cross-windows (aarch64, ucrt)	2h 57m 35s
test-ffmpeg	0s
test-libcxx	0s
test-openmp	0s
test-compiler-rt	0s
test-toolchain (x86_64)	1m 54s
test-toolchain (i686)	2m 0s
upload-nightly	0s
	23h 26m 54s

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