Change CI to handle openblas MSRV compatibility #343

Job	Run time
clippy/stable	20s
cargo-careful	1m 56s
blas-msrv	18s
cross_test/s390x-unknown-linux-gnu/stable	6m 50s
cross_test/i686-unknown-linux-gnu/stable	1m 25s
docs/stable	20s
format/nightly	13s
miri	7m 53s
tests/stable	2m 25s
nostd/thumbv6m-none-eabi/stable	15s
tests/beta	2m 25s
tests/nightly	2m 25s
tests/1.64.0	2m 39s
conclusion	1s
	29m 25s

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