This auto-configures a new SimpleAsyncTaskSchedulerBuilder bean in the
context. This bean is configured to use virtual threads, if enabled.
SimpleAsyncTaskSchedulerCustomizers can be used to customize the built
SimpleAsyncTaskScheduler.
If virtual threads are enabled, the application task scheduler is
configured to be a SimpleAsyncTaskScheduler.
Adds a new configuration property spring.task.scheduling.simple
.concurrency-limit
Closes gh-36609