<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#38756
- Changed to NOT mark many client errors as exceptions
- Instead, added client_error and server_error metrics that can be used
to alert on unusual error rates
# Checklist for submitter
- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
## Testing
- [x] Added/updated automated tests
- [x] QA'd all new/changed functionality manually
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added separate metrics for distinguishing between client and server
errors, enhancing observability and monitoring capabilities.
* **Bug Fixes**
* Client request errors no longer incorrectly appear in error tracking
as exceptions; improved accuracy of error reporting to external
services.
* Adjusted logging levels for authentication and enrollment operations
to provide clearer diagnostics.
<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
