Bump cachix/cachix-action from 12 to 13 #4105

Job	Run time
Check	31s
coverage	9m 18s
Lints (beta)	29s
Lints (stable)	28s
minimum_rust_version	7m 3s
Publish (dry-run)	5m 51s
test_all_features	10m 25s
test (beta)	1m 27s
test (stable)	1m 31s
Run tests under wasm32-wasi	1m 17s
Check if wasm-pack builds a valid package for the sourmash crate	1m 21s
test (windows)	3m 2s
test (macos)	3m 16s
Check if cbindgen runs cleanly for generating the C headers	59s
	46m 58s

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