doc: fix a typo in CHANGELOG_V12

PR-URL: #35786
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
Reviewed-By: Ricky Zhou <0x19951125@gmail.com>

doc/changelogs/CHANGELOG_V12.md

@@ -947,7 +947,7 @@ occur in any future release.” Users should be cautious when using the feature
 in production environments.
 
 Unlike Node.js 14, using ESM will still emit a runtime experimental warning,
-either when a module is used a the application's entrypoint or the first time
+either when a module is used at the application's entrypoint or the first time
 dynamic `import()` is called.
 
 Please keep in mind that the implementation of ESM in Node.js differs from the