Use new actions-rust-release and don't build beta & nightly on all pl… #71

Job	Run time
Test - FreeBSD-x86_64 with rust stable	1m 44s
Test - Linux-x86_64 with rust stable	1m 42s
Test - Linux-aarch64 with rust stable	1m 59s
Test - Linux-arm with rust stable	2m 18s
Test - Linux-i686 with rust stable	2m 1s
Test - Linux-powerpc with rust stable	1m 44s
Test - Linux-powerpc64 with rust stable	1m 54s
Test - Linux-powerpc64le with rust stable	1m 46s
Test - Linux-riscv64 with rust stable	1m 40s
Test - Linux-s390x with rust stable	1m 50s
Test - NetBSD-x86_64 with rust stable	1m 46s
Test - Windows-aarch64 with rust stable	4m 46s
Test - Windows-i686 with rust stable	3m 31s
Test - Windows-x86_64 with rust stable	4m 59s
Test - macOS-x86_64 with rust stable	1m 26s
Test - macOS-aarch64 with rust stable	1m 31s
Test - Linux-x86_64 with rust beta	1m 43s
Test - Linux-x86_64 with rust nightly	1m 40s
	40m 0s

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