Add 12.0.0 to changelog

Author: aldeed

CHANGELOG.md

@@ -1,3 +1,9 @@
+# 12.0.0
+
+Switch from `eslint-plugin-node`, which is abandoned, to `eslint-plugin-n`. Although it's basically a drop-in replacement, there are some breaking changes:
+- All config and eslint-disable comments will need to be updated from `node/` to `n/`
+- There may be new errors found because `eslint-plugin-n` has been maintained and received fixes while `eslint-plugin-node` has not. Updating to 12.0.0 will require fixing or ignoring these new errors.
+
 # 11.0.0
 
 - Breaking: import rules now catch some dynamic imports.