[Metric Alerts] Warning triggers notificaiton despite no action for Warning status

### Environment

SaaS (https://sentry.io/)

### Steps to Reproduce

It has been reported that a metric alert is sending notifications when it’s in a warning status. This happens despite the alert being configured to send notifications only when the alert reaches a critical status. It has occurred for the customer in the past and has come up again. Customer information linked in Jira.

### Expected Result

Only send notifications when critical status is met

### Actual Result

Notifications sent to customer indicating warning status

### Product Area

Alerts

### Link

_No response_

### DSN

_No response_

### Version

_No response_

┆Issue is synchronized with this [Jira Improvement](https://getsentry.atlassian.net/browse/FEEDBACK-2261) by [Unito](https://www.unito.io)