EXP: open up the RocksDB to playing about #6354

Job	Run time
coverage	1m 32s
Check	30s
Lints (beta)	18s
test (beta)	33s
test_all_features	1m 48s
Lints (stable)	20s
test (stable)	34s
test (windows)	2m 9s
test (macos)	2m 13s
Check if cbindgen runs cleanly for generating the C headers	30s
minimum_rust_version	52s
Publish (on tags, dry-run otherwise)	6m 16s
Check if wasm-pack builds a valid package for the sourmash crate	38s
	18m 13s

Provide feedback