Ensure errors are logged correctly

[chronark]

Preliminary Checks

• I have reviewed the documentation: https://unkey.com/docs

• I have searched for existing issues: https://github.com/unkeyed/unkey/issues

• This issue is not a question, general help request, or anything other than a bug report directly related to Unkey. Please ask questions in our Discord community: https://unkey.com/discord.

Reproduction / Replay Link (Optional)

No response

Issue Summary

it looks like we're not correctly capturing the error message

 if (err) {
      throw new UnkeyApiError({
        code: "INTERNAL_SERVER_ERROR",
        message: `unable to load ratelimit: ${err.message}`,
      });
    }

The resulting log doesn't have it

Steps to Reproduce

no idea

Expected behavior

log message

Other information

No response

Screenshots

No response

Version info

- OS:
- Node:
- npm:

[linear]

ENG-1579 Ensure errors are logged correctly