Failing to update with MonitorUpdateRequest

[Doetheman]

Describe the bug A clear and concise description of what the bug is.

When my team updates monitoring via the datadog api client using the calling update monitor method the MonitorUpdateRequest returns an attribute error.

datadog_api_client.exceptions.ApiAttributeError: MonitorUpdateRequest has no attribute 'restriction_policy' at ['restriction_policy']

To Reproduce Steps to reproduce the behavior:

1. Export monitor as a JSON
2. Add to code base
3. Use the datadog api to update monitoring
4. See error

Expected behavior A clear and concise description of what you expected to happen.

Our monitors should update and not return an error when parsing the JSON.

Screenshots If applicable, add screenshots to help explain your problem.

Environment and Versions (please complete the following information): A clear and precise description of your setup:

Latest version of datadog api client, datadog-api-client-2.26.0