Update releases.json (#9270)

Author: rbhanda

release-notes/9.0/releases.json

@@ -13,7 +13,7 @@
       "release-version": "9.0.0-preview.3",
       "security": false,
       "cve-list": [],
-      "release-notes": "https://github.com/dotnet/core/blob/main/release-notes/9.0/preview/preview9/9.0.0-preview.3.md",
+      "release-notes": "https://github.com/dotnet/core/blob/main/release-notes/9.0/preview/preview3/9.0.0-preview.3.md",
       "runtime": {
         "version": "9.0.0-preview.3.24172.9",
         "version-display": "9.0.0-preview.3",