fix: add datetime_object_hook to SQLite store deserialization #401

Job	Run time
setup	4s
Hello World	1m 2s
Basic Step	57s
Step with Retry	1m 9s
Multiple Wait	1m 14s
Wait State	1m 3s
Run in Child Context	1m 9s
Step with Name	53s
Wait for Callback Success	1m 3s
Parallel Operations	1m 2s
Wait for Callback Failure	55s
Callback	1m 5s
Block Example	58s
Wait for Condition	59s
Steps with Retry	1m 6s
Map Operations	1m 10s
Logger Example	1m 0s
Simple Execution	50s
Run in Child Context Large Data	1m 2s
Map with Max Concurrency	1m 1s
Parallel with Wait	1m 4s
Parallel with Max Concurrency	1m 7s
Parallel with Batch SerDes	49s
Map with Min Successful	57s
Map with Failure Tolerance	55s
Parallel with Custom SerDes	51s
Parallel with Failure Tolerance	1m 1s
Handler Error	59s
Map with Custom SerDes	1m 38s
Map with Batch SerDes	1m 9s
Map Large Scale	1m 15s
	31m 27s

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