Bump thiserror from 2.0.8 to 2.0.9 #6185

Job	Run time
Check	22s
Check if cbindgen runs cleanly for generating the C headers	7m 58s
coverage	8m 53s
Lints (beta)	37s
minimum_rust_version	6m 42s
Lints (stable)	25s
Publish (on tags, dry-run otherwise)	5m 24s
test (beta)	1m 29s
test_all_features	12m 41s
test (stable)	1m 22s
Run tests under wasm32-wasi	1m 13s
test (windows)	3m 51s
test (macos)	1m 14s
Check if wasm-pack builds a valid package for the sourmash crate	1m 21s
	53m 32s

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