feat(workflow): add schema inference

[natemcgrady]

SUMMARY

This PR adds a feature for inferring a response schema based on a mock payload.

Just paste an example payload from your source and select "Infer Schema" and it will automatically add all the values to the Request Schema section.

CHANGES

• added components/workflow/utils/json-parser.ts
• modified trigger-config.tsx to add infer schema button

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