Update README.md

fix years in changelog

README.md

@@ -459,12 +459,12 @@ Currently, we support a few cases related to loyalty program. Firstly we provide
 If you found a bug or want to suggest a new feature, please file a GitHub issue.
 
 ## Changelog
-- 2022-05-05 `v5.2.2`
+- 2023-05-05 `v5.2.2`
   - do not make unnecessary, malformed requests to CT for a products
   - update tests
   - for used cart promotions, separate promotion id from promotion banner
   - fixed console logging data while using `migration CLI`
-- 2022-05-04 `v5.2.1`
+- 2023-05-04 `v5.2.1`
   - minor bugfix, when someone have defined unit type promotion/voucher in Voucherify dashboard not based on commercetools products, we should not be looking for this product in commercetools backend store.
 - 2022-12-07 `v5.2.0`
   - domain refactoring/code quality