Remove trailing whitespace

Author: daymxn

FirebaseAI/CHANGELOG.md

@@ -2,9 +2,9 @@
 - [feature] Added a new configuration option to use limited-use App
   Check tokens for attesting Firebase AI Logic requests. This enhances
   security against replay attacks. To use this feature, configure it
-  explicitly via the new `useLimitedUseAppCheckTokens` parameter when 
-  initializing `FirebaseAI`. We recommend migrating to limited-use 
-  tokens now, so your app will be ready to take advantage of replay 
+  explicitly via the new `useLimitedUseAppCheckTokens` parameter when
+  initializing `FirebaseAI`. We recommend migrating to limited-use
+  tokens now, so your app will be ready to take advantage of replay
   protection when it becomes available for Firebase AI Logic.
 
 # 12.0.0