(ci): brew link x86 toolchain for macos13 runner #951

Job	Run time
clippy	3m 27s
Test FIPS integration	3m 1s
Cross build from macOS to Linux (x86_64-unknown-linux-gnu)	2m 18s
Cross build from macOS to Linux (FIPS) (x86_64-unknown-linux-gnu)	4m 22s
rustfmt	11s
Test features	7m 15s
Test (stable)	2m 13s
Test (arm-android)	2m 16s
Test (arm64-android)	2m 5s
Test (i686-android)	2m 3s
Test (x86_64-android)	2m 24s
Test (aarch64-ios)	2m 26s
Test (aarch64-ios-sim)	3m 13s
Test (x86_64-ios)	2m 47s
Test (i686-linux)	2m 21s
Test (arm-linux)	2m 15s
Test (aarch64-linux)	2m 26s
Test (arm64-macos)	3m 5s
Test (x86_64-macos)	2m 53s
Test (x86_64-mingw)	5m 13s
Test (i686-msvc)	6m 10s
Test (x86_64-msvc)	5m 35s
	1h 9m 59s

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