download ninja/gn from cipd #6163

Job	Run time
debug x86_64-apple-darwin	4m 19s
debug x86_64-apple-darwin	5m 21s
release x86_64-apple-darwin	7m 55s
release x86_64-apple-darwin	5m 15s
asan aarch64-apple-darwin	4m 42s
asan aarch64-apple-darwin	5m 12s
debug aarch64-apple-darwin	4m 35s
debug aarch64-apple-darwin	5m 13s
release aarch64-apple-darwin	8m 4s
release aarch64-apple-darwin	5m 12s
debug x86_64-unknown-linux-gnu	3m 6s
debug x86_64-unknown-linux-gnu	5m 6s
release x86_64-unknown-linux-gnu	5m 32s
release x86_64-unknown-linux-gnu	3m 45s
release x86_64-pc-windows-msvc	4m 22s
release x86_64-pc-windows-msvc	4m 50s
debug aarch64-unknown-linux-gnu	3m 11s
debug aarch64-unknown-linux-gnu	3m 46s
release aarch64-unknown-linux-gnu	4m 20s
release aarch64-unknown-linux-gnu	5m 6s
publish	0s
publish	0s
	1h 38m 52s

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