[Form] fix option name in changelog

Author: xabbuh

CHANGELOG.md

@@ -62,7 +62,7 @@ CHANGELOG
 
  * moved CSRF implementation to the new Security CSRF sub-component
  * deprecated CsrfProviderInterface and its implementations
- * deprecated options "csrf_provider" and "intention" in favor of the new options "csrf_token_generator" and "csrf_token_id"
+ * deprecated options "csrf_provider" and "intention" in favor of the new options "csrf_token_manager" and "csrf_token_id"
 
 2.3.0
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