PAC-5: update changelog

Author: kenza-ya

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 ### import-product import-product-ee
 * New validation added, whether the product of the website is assigned to the current shop view line
-  * `"import.callback.store.in.website.validator"`
+  * `"import_product.store.in.website.validator.observer"`
 
 ## Bugfixes