docs: reorder changelog pages chronologically in docs.json

Author: yash-pouranik

mintlify/docs/docs.json

@@ -94,8 +94,8 @@
             "group": "Changelog",
             "pages": [
               "changelog/july-2026",
-              "changelog/may-2026",
               "changelog/june-2026",
+              "changelog/may-2026",
               "changelog/april-2026"
             ]
           }