The SimpleAsyncTaskExecutorBuilder can be used to create
SimpleAsyncTaskExecutor. It will be auto-configured into the context.
SimpleAsyncTaskExecutorCustomizer can be used to customize the built
SimpleAsyncTaskExecutor.
If virtual threads are enabled:
- SimpleAsyncTaskExecutor will use virtual threads
- SimpleAsyncTaskExecutorBuilder will be used as the application task
executor
A new property 'spring.task.execution.simple.concurrency-limit' has been
added to control the concurrency limit of the SimpleAsyncTaskExecutor
Closes gh-35711