fix: add replay_children in checkpoint processor #378

Job	Run time
setup	5s
Basic Step	55s
Hello World	1m 1s
Wait State	58s
Step with Retry	1m 12s
Step with Name	1m 4s
Callback	57s
Multiple Wait	1m 19s
Run in Child Context	1m 3s
Map Large Scale	1m 7s
Steps with Retry	1m 7s
Map Operations	54s
Wait for Condition	59s
Block Example	59s
Logger Example	56s
Map with Max Concurrency	1m 1s
Map with Min Successful	1m 1s
Parallel with Wait	1m 8s
Parallel Operations	1m 2s
Parallel with Max Concurrency	1m 6s
Run in Child Context Large Data	58s
Simple Execution	1m 3s
Map with Custom SerDes	1m 0s
Parallel with Custom SerDes	1m 3s
Map with Failure Tolerance	59s
Parallel with Batch SerDes	54s
Handler Error	55s
Parallel with Failure Tolerance	56s
Map with Batch SerDes	1m 4s
	28m 46s

Provide feedback