Exception message could be more descriptive for post to cron-checks/sync

[zhuston]

I was using the spatie/laravel-schedule-monitor and had an exception returned with a message that just says "Server Error". After some guessing I discovered it seemed to be due to having a cron name that was too long. I was able to solve me issue by shortening the name but it would have been helpful if the exception pointed me towards that rather than guessing what could be causing a Server Error.

The exception is thrown here.
https://github.com/ohdearapp/ohdear-php-sdk/blob/main/src/MakesHttpRequests.php#L73