build

Add semver check to CI #219

Job	Run time
fmt	20s
codecov	3m 19s
clippy	1m 32s
build (stable, --features "")	47s
build (stable, --all-features)	1m 36s
build (stable, --no-default-features)	52s
build (1.71, --features "")	53s
semver	3m 36s
test	2m 36s
build (1.71, --all-features)	1m 58s
build (1.71, --no-default-features)	44s
build (beta, --features "")	1m 5s
build (beta, --all-features)	2m 19s
build (beta, --no-default-features)	31s
build (nightly, --features "")	45s
build (nightly, --all-features)	1m 48s
build (nightly, --no-default-features)	31s
	25m 12s

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