Merge tag 'v4.9.0' into libsignal #138

Job	Run time
Cross build from macOS to Linux (FIPS) (x86_64-unknown-linux-gnu)	9m 21s
rustfmt	15s
clippy	8m 1s
Cross build from macOS to Linux (x86_64-unknown-linux-gnu)	2m 8s
Test FIPS integration	3m 0s
Test features	7m 9s
Test (stable)	2m 7s
Test (arm-android)	1m 56s
Test (arm64-android)	3m 4s
Test (i686-android)	2m 11s
Test (x86_64-android)	2m 3s
Test (aarch64-ios)	2m 6s
Test (aarch64-ios-sim)	3m 34s
Test (x86_64-ios)	2m 35s
Test (i686-linux)	2m 20s
Test (arm-linux)	2m 31s
Test (aarch64-linux)	2m 33s
Test (arm64-macos)	2m 21s
Test (x86_64-macos)	2m 12s
Test (x86_64-mingw)	6m 10s
Test (i686-msvc)	8m 50s
Test (x86_64-msvc)	5m 44s
	1h 22m 11s

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