codespell.yml: allow a proper name in our changelog #14672

Job	Run time
Check protos	39s
Clippy check	2m 27s
Build jj-lib without Git support	49s
Check that MkDocs can build the docs	20s
Check that MkDocs can build the docs with Poetry 1.8	31s
Check formatting	16s
cargo-deny (advisories)	30s
build (ubuntu-latest)	4m 23s
cargo-deny (bans licenses sources)	30s
build (macos-13)	5m 55s
build (macos-14)	3m 49s
build (windows-latest)	8m 38s
build (ubuntu-latest, --all-features)	5m 25s
	34m 12s

Provide feedback