fix UPGRADE.md

Author: DennisGarding

UPGRADE.md

@@ -1,4 +1,4 @@
-# 17.0.0
+# NEXT
 
 - [BREAKING] [#178](https://github.com/shopware/SwagMigrationAssistant/pull/178) - fix!: unsupported sales channel migration
   - [BREAKING] Added required constructor parameter:
@@ -12,6 +12,8 @@
 - Changed Shopware 6 sales channel migration to append the suffix ` (Migration)` to storefront sales channels if the target system already contains a storefront sales channel with the same name
 - Changed Shopware 6 converters for `CustomerWishlist`, `NewsletterRecipient`, `Order`, `PageSystemConfig`, `Product`, `ProductReview`, `SalesChannelDomain`, `SeoUrl`, `SeoUrlTemplate` and `SystemConfig` to skip records if the referenced sales channel cannot be mapped
 
+# 17.0.0
+
 - [BREAKING] - refactor!: centralize configuration into `MigrationConfiguration` service
     - [BREAKING] Added required constructor parameter `SwagMigrationAssistant\Migration\MigrationConfiguration $migrationConfig` to `SwagMigrationAssistant\Migration\Media\Processor\HttpDownloadServiceBase`
     - [BREAKING] Added required constructor parameter `SwagMigrationAssistant\Migration\MigrationConfiguration $migrationConfig` to `SwagMigrationAssistant\Profile\Shopware6\Media\HttpOrderDocumentGenerationService`