Azure Function running on a self-modifying random schedule

RandomTrigger.csx

using System;
using System.IO;

public static void Run(TimerInfo myTimer, TraceWriter log)
{
    log.Info($"C# Timer trigger function executed at: {DateTime.Now}");    
    
    //Read current settings
    string[] settings = File.ReadAllLines(@"D:\home\site\wwwroot\RandomTrigger\function.json");
    var schedule = settings[6];
    log.Info($"Current schedule: {schedule}");

    Random rnd = new Random();
    //Random number from 0 to 59
    var randomInterval = rnd.Next(60);

    //Create a new schedule
    schedule = $"\t\t\"schedule\": \"{randomInterval} * * * * *\"";
    
    //Overwrite original settings file
    settings[6] = schedule;
    File.WriteAllLines(@"D:\home\site\wwwroot\RandomTrigger\function.json", settings);
}