Output updated seed corpora as artifacts #483

Job	Run time
Checking fmt and docs	21s
clippy	24s
Build and test (ubuntu-latest, stable)	49s
fuzz_read_with_no_features	4h 51m 39s
Build and test (ubuntu-latest, 1.67.0)	1m 52s
fuzz_write	3h 9m 9s
Build and test (ubuntu-latest, nightly)	48s
fuzz_read	1h 12m 0s
Build and test (macOS-latest, stable)	2m 15s
fuzz_write_with_no_features	26m 26s
Build and test (macOS-latest, 1.67.0)	6m 22s
Build and test (macOS-latest, nightly)	1m 25s
Build and test (windows-latest, stable)	2m 12s
Build and test (windows-latest, 1.67.0)	3m 18s
Build and test (windows-latest, nightly)	2m 13s
	10h 1m 13s

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