fix: fix double encoding for execution input #403

Job	Run time
setup	4s
Hello World	1m 11s
Basic Step	55s
Step with Name	55s
Step with Retry	1m 2s
Multiple Wait	1m 0s
Callback	1m 5s
Wait State	59s
Wait for Callback Success	1m 13s
Parallel Operations	1m 5s
Map Large Scale	1m 9s
Wait for Callback Failure	57s
Map Operations	55s
Steps with Retry	1m 13s
Wait for Condition	47s
Run in Child Context	1m 2s
Run in Child Context Large Data	58s
Block Example	1m 0s
Map with Failure Tolerance	54s
Map with Max Concurrency	57s
Simple Execution	1m 3s
Map with Min Successful	54s
Parallel with Wait	57s
Parallel with Max Concurrency	1m 0s
Parallel with Custom SerDes	55s
Map with Custom SerDes	57s
Parallel with Failure Tolerance	54s
Parallel with Batch SerDes	58s
Handler Error	1m 2s
Logger Example	55s
Map with Batch SerDes	56s
	29m 52s

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