Increment from 2.3 to 2.4 (#2295)

Author: noCharger

package.json

@@ -11,7 +11,7 @@
     "dashboarding"
   ],
   "private": true,
-  "version": "2.3.0",
+  "version": "2.4.0",
   "branch": "main",
   "types": "./opensearch_dashboards.d.ts",
   "tsdocMetadata": "./build/tsdoc-metadata.json",