ci: skip redundant image publishes #404

Job	Run time
security	21s
Coverage (llvm-cov)	1m 25s
version	4s
lint	1m 17s
cargo-deny (advisories + licenses)	22s
mutation	1m 45s
test (ubuntu-latest)	1m 29s
test (windows-latest)	2m 59s
test (macos-latest)	1m 29s
	11m 11s

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