feat(testing-sdk): execution state pagination and token validation #338

Job	Run time
setup	4s
Hello World	1m 6s
Step with Retry	56s
Run in Child Context	1m 3s
Basic Step	1m 12s
Wait State	1m 1s
Step with Name	59s
Callback	1m 16s
Map Operations	1m 7s
Parallel Operations	1m 4s
Logger Example	1m 0s
Simple Execution	1m 4s
Wait for Condition	1m 0s
Steps with Retry	1m 9s
Block Example	1m 12s
Run in Child Context Large Data	1m 10s
Map with Max Concurrency	1m 1s
Multiple Wait	1m 6s
Map with Failure Tolerance	59s
Parallel with Max Concurrency	1m 3s
Map with Custom SerDes	1m 7s
Parallel with Failure Tolerance	1m 8s
Map with Min Successful	1m 1s
Map with Batch SerDes	59s
Handler Error	1m 4s
Parallel with Batch SerDes	54s
Parallel with Wait	1m 7s
Parallel with Custom SerDes	1m 6s
	28m 58s

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