chore: Add CI checks #5

Job	Run time
clippy	35s
rustfmt	6s
build_and_test (ubuntu-latest, stable)	53s
build_and_test (ubuntu-latest, beta)	1m 21s
build_and_test (ubuntu-latest, nightly)	1m 23s
build_and_test (macOS-latest, stable)	1m 39s
build_and_test (macOS-latest, beta)	1m 13s
build_and_test (macOS-latest, nightly)	50s
build_and_test (windows-latest, stable)	3m 43s
build_and_test (windows-latest, beta)	1m 53s
build_and_test (windows-latest, nightly)	2m 47s
	16m 23s

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