Fix `stringify()` failing to serialize `BigInt`; remove instead

[jpwilliams]

Summary

BigInts are not natively parsed by JSON. Attempting to return a BigInt from a step or function will throw an error. This error was hard to see, which is fixed in #374.

Our types reflect that BigInt is unparseable and will type it as never, though these were obscured from the user a touch, which is fixed in #371.

For this reason, this PR ensures BigInts are removed during parsing instead of throwing. We can investigate adding BigInt support across our SDKs past this fix; the n suffix seems an unwritten standard.

Checklist

• [ ] Added a docs PR that references this PR N/A
• [x] Added unit/integration tests
• [x] Added changesets if applicable

Related

• 371

• 374

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 450b5612f417e97b6b0cfc5bc9f3102b4dde015b

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

| Name | Type | | ------- | ----- | | inngest | Patch |

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[jpwilliams]

Add to tests:

• BigInt type check
• Runtime tests for each type

https://github.com/inngest/inngest-js/blob/4c71b9a699529772bc787b7085f964aab67e6f78/packages/inngest/src/components/InngestStepTools.test.ts#L179-L221