Fix docsrs builds #648

Job	Run time
rustfmt	10s
clippy	1m 38s
Cross build from macOS to Linux (x86_64-unknown-linux-gnu)	3m 29s
Cross build from macOS to Linux (FIPS) (x86_64-unknown-linux-gnu)	7m 43s
Test features	3m 19s
Test FIPS integration	2m 40s
Test (stable)	1m 57s
Test (macos-x86_64)	4m 39s
Test (arm-android)	2m 2s
Test (arm64-android)	2m 16s
Test (i686-android)	1m 57s
Test (x86_64-android)	2m 1s
Test (aarch64-ios)	4m 11s
Test (aarch64-ios-sim)	3m 54s
Test (x86_64-ios)	4m 30s
Test (i686-linux)	2m 2s
Test (arm-linux)	1m 59s
Test (aarch64-linux)	1m 58s
Test (x86_64-musl)	2m 6s
Test (x86_64-mingw)	2m 24s
Test (i686-msvc)	5m 14s
Test (x86_64-msvc)	5m 25s
	1h 7m 34s

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