Add Cross config to work around https://github.com/cross-rs/cross/iss… #81

Job	Run time
Test - FreeBSD-x86_64 with rust stable	53s
Test - Linux-x86_64 with rust stable	41s
Test - Linux-aarch64 with rust stable	56s
Test - Linux-arm with rust stable	47s
Test - Linux-i686 with rust stable	59s
Test - Linux-powerpc with rust stable	1m 1s
Test - Linux-powerpc64 with rust stable	50s
Test - Linux-powerpc64le with rust stable	1m 7s
Test - Linux-riscv64 with rust stable	1m 7s
Test - Linux-s390x with rust stable	1m 9s
Test - NetBSD-x86_64 with rust stable	1m 54s
Test - Windows-aarch64 with rust stable	4m 19s
Test - Windows-i686 with rust stable	5m 2s
Test - Windows-x86_64 with rust stable	3m 20s
Test - macOS-x86_64 with rust stable	40s
Test - macOS-aarch64 with rust stable	36s
Test - Linux-x86_64 with rust beta	54s
Test - Linux-x86_64 with rust nightly	39s
	26m 54s

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