Update bindgen to 0.70.1 #909

Job	Run time
clippy	7m 59s
rustfmt	5s
Cross build from macOS to Linux (x86_64-unknown-linux-gnu)	1m 40s
Cross build from macOS to Linux (FIPS) (x86_64-unknown-linux-gnu)	6m 44s
Test features	6m 34s
Test FIPS integration	2m 53s
Test (stable)	2m 5s
Test (arm-android)	2m 5s
Test (arm64-android)	2m 0s
Test (i686-android)	1m 56s
Test (x86_64-android)	1m 57s
Test (aarch64-ios)	2m 11s
Test (aarch64-ios-sim)	2m 30s
Test (x86_64-ios)	2m 8s
Test (i686-linux)	2m 26s
Test (arm-linux)	2m 23s
Test (aarch64-linux)	2m 12s
Test (arm64-macos)	2m 3s
Test (x86_64-macos)	2m 27s
Test (x86_64-mingw)	6m 19s
Test (i686-msvc)	7m 13s
Test (x86_64-msvc)	5m 53s
	1h 13m 43s

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