refactor: merge CoalesceAsyncExecInput into CoalesceBatches#18540

Jefffrey merged 4 commits into

apache:mainapache/datafusion:mainfrom

Tim-53:18155-fold-coalesceasyncexecinput-into-coalescebatchesTim-53/datafusion:18155-fold-coalesceasyncexecinput-into-coalescebatchesCopy head branch name to clipboard