Fix error log message to clarify JSON write failure cause

Updated the log message in RestResponseExceptionHandler to specify that the JSON write failure is due to the path being smaller than 3. This improves clarity and debugging efficiency when analyzing error logs.

Author: renczesstefan

application-engine/src/main/java/com/netgrif/application/engine/workflow/web/RestResponseExceptionHandler.java

@@ -60,7 +60,7 @@ protected ResponseEntity<Object> handleHttpMessageNotWritable(HttpMessageNotWrit
                             jme.getOriginalMessage(), jme.getPathReference(), describePath(path), jme);
                 }
             } else {
-                log.error("JSON write failed: {} | path={} | details={}",
+                log.error("JSON write failed because of path is smaller than 3: {} | path={} | details={}",
                         jme.getOriginalMessage(), jme.getPathReference(), describePath(path), jme);
             }