fix(release-2025-09): update release notes overview for release-2025-09 for livingdocs-server with tag v281.3.28

Author: livingdocs-automation

data/releases.json

@@ -33,7 +33,7 @@
     "legacy": false,
     "sortId": 51,
     "editorVersion": "v119.14.31",
-    "serverVersion": "v281.3.27"
+    "serverVersion": "v281.3.28"
   },
   "release-2025-07": {
     "key": "release-2025-07",