upgrade libs

* elasticsearch

CHANGES.md

@@ -5,6 +5,8 @@ CHANGES
 
 * Improvement: Auto-format markdown tables which includes multibyte text
 * Improvement: Enable to switch show/hide border for highlight.js
+* Support: Upgrade libs
+    * elasticsearch
 
 ## 3.0.13
 

package.json

@@ -64,7 +64,7 @@
     "cookie-parser": "^1.4.3",
     "cross-env": "^5.0.5",
     "csrf": "~3.0.3",
-    "elasticsearch": "^14.0.0",
+    "elasticsearch": "^15.0.0",
     "entities": "^1.1.1",
     "env-cmd": "^8.0.1",
     "escape-string-regexp": "^1.0.5",