[EXP] use roaring bitmaps for MinHash #6151

Job	Run time
Check	31s
Check if cbindgen runs cleanly for generating the C headers	8m 3s
coverage	7m 16s
Lints (beta)	13s
minimum_rust_version	6m 21s
Lints (stable)	5s
test (beta)	1m 44s
Publish (on tags, dry-run otherwise)	5m 34s
test_all_features	14m 8s
Run tests under wasm32-wasi	1m 12s
test (stable)	1m 31s
test (windows)	4m 21s
test (macos)	1m 46s
Check if wasm-pack builds a valid package for the sourmash crate	1m 19s
	54m 4s

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