ci: Add a release job #5

Job	Run time
Document and check formatting	16s
msrv	2m 54s
Test (ubuntu-24.04, stable)	16s
Test (windows-2025, stable)	42s
Test (macos-15, nightly)	18s
Test (ubuntu-24.04, nightly)	14s
Test (ubuntu-24.04, beta)	14s
Test (macos-15, stable)	10s
Test (windows-2025, nightly)	22s
	5m 26s

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