update docs

CHANGES.md

@@ -14,6 +14,12 @@ Upgrading Guide: https://docs.growi.org/en/admin-guide/upgrading/36x.html
 
 * Improvement: Drop unnecessary MongoDB collection indexes
 
+
+
+## 3.5.23
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+* Fix: Healthcheck API with `?connectToMiddlewares` returns error
+
 ## 3.5.22
 
 * Improvement: Add `FILE_UPLOAD_DISABLED` env var