Update release notes from microservice repo

Author: Areso

release_notes.md

@@ -1,4 +1,8 @@
 # Release notes
+Wed 17 Sep 2025 10:42 PM EEST  
+dbaas_site:
+[OBL-440](https://github.com/Areso/Oblache/issues/440) added backup link create button to portal. fix property key    
+
 Wed 17 Sep 2025 10:38 PM EEST  
 dbaas_site:
 [OBL-440](https://github.com/Areso/Oblache/issues/440) added backup link create button to portal