### Describe the feature request Add support for monitoring cron jobs by specifying a cron expression (e.g., */5 * * * *) instead of fixed intervals. Example config: ``` name: my-cronjob url: https://api.example.com/health cron: "*/5 * * * *" ``` Thank you! ### Why do you personally want this feature to be implemented? Simplifies monitoring of existing cron jobs without manual interval calculation. ### How long have you been using this project? 2y ### Additional information Currently, I'm using external-endpoints to monitor my backup scrips