Skip Rust version detection for bindgen #1257

Job	Run time
rustfmt	14s
clippy	28s
Cross build from macOS to Linux (FIPS) (x86_64-unknown-linux-gnu)	4m 13s
Test features	5m 58s
Test FIPS integration	2m 59s
Cross build from macOS to Linux (x86_64-unknown-linux-gnu)	1m 42s
Test (stable)	2m 14s
Test (x86_64-android)	2m 15s
Test (i686-android)	3m 16s
Test (aarch64-ios)	2m 51s
Test (arm64-android)	2m 33s
Test (x86_64-ios)	2m 1s
Test (aarch64-ios-sim)	2m 41s
Test (arm-android)	2m 58s
Test (i686-linux)	2m 44s
Test (i686-msvc)	6m 26s
Test (aarch64-linux)	5m 56s
Test (x86_64-macos)	2m 12s
Test (arm-linux)	5m 28s
Test (x86_64-msvc)	6m 35s
Test (x86_64-mingw)	4m 57s
Test (arm64-macos)	2m 7s
	1h 12m 48s

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