MRG: when lingroups are provided, use them for `csv_summary` #5834

Job	Run time
Check	31s
test_all_features	13m 19s
coverage	10m 23s
Lints (beta)	34s
minimum_rust_version	7m 10s
Lints (stable)	35s
Publish (dry-run)	6m 5s
test (beta)	1m 34s
Run tests under wasm32-wasi	1m 20s
test (stable)	1m 36s
Check if wasm-pack builds a valid package for the sourmash crate	1m 36s
test (windows)	3m 21s
test (macos)	2m 54s
Check if cbindgen runs cleanly for generating the C headers	8m 24s
	59m 22s

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