v8.5.0 (#1493)

## Description

This pull request updates the package version for the WorkOS Node SDK
from 8.4.1 to 8.5.0. The version constant in the code and the version
field in `package.json` have both been updated to reflect this change.

Version update:

* Bumped the package version to 8.5.0 in both `package.json` and the
`VERSION` constant in `src/workos.ts`.
[[1]](diffhunk://#diff-7ae45ad102eab3b6d7e7896acd08c427a9b25b346470d7bc6507b6481575d519L2-R2)
[[2]](diffhunk://#diff-43fae42284da1898f98b43b56a7bc6f5fb979e271bca59f4670751ba2c0020efL50-R50)

## Documentation

Does this require changes to the WorkOS Docs? E.g. the [API
Reference](https://workos.com/docs/reference) or code snippets need
updates.

```
[ ] Yes
```

If yes, link a related docs PR and add a docs maintainer as a reviewer.
Their approval is required.