Add new ignores in codespell for local runs

This commit adds both a path ignore for the fuzz corpus and a word skip
because python uniffi can't spell reusable.

Author: benalleng

.codespellrc

@@ -1,3 +1,3 @@
 [codespell]
-skip = .git,target,Cargo.toml,Cargo.lock,Cargo-minimal.lock,Cargo-recent.lock,package-lock.json
-ignore-words-list = crate,ser,ot
+skip = .git,target,Cargo.toml,Cargo.lock,Cargo-minimal.lock,Cargo-recent.lock,package-lock.json,./fuzz/corpus
+ignore-words-list = crate,ser,ot,re-useable