Prior to this commit, support was provided for disabling cron jobs
configured with an explicit "-" cron expression. However, the "-"
expression was only supported when supplied via the @Scheduled
annotation.
This commit adds support for disabling cron jobs configured with the
"-" cron expression when a cron job is registered via the
addCronTask(Runnable, String) method in the ScheduledTaskRegistrar
supplied to a SchedulingConfigurer.
Closes gh-23568