changelog fix: 2.3.1->2.31 + backfill

Author: dev-dist

public/changelog.json

@@ -1423,6 +1423,13 @@
       "title": "CRE CLI v1.0.2",
       "topic": "CRE"
     },
+    {
+      "category": "release",
+      "date": "2025-11-17",
+      "description": "Chainlink Node v2.30.0 is now available. See the [Release Notes](https://github.com/smartcontractkit/chainlink/releases/tag/v2.30.0) for details.",
+      "title": "Chainlink Node v2.30.0",
+      "topic": "Nodes"
+    },
     {
       "category": "integration",
       "date": "2025-11-16",