Alert specific for each permutation of a sentry tag

### Problem Statement In Sentry alerts, I can set an individual alert based on filters such as tag, message, etc. However, I want to set up an alarm that essentially says "alert me if issue X happens for any respective tag value more than 10 times in 5 minutes". To help illustrate, an example might be that you send a sentry warning when a rate limit `429` occurs. For this error, you have a sentry tag for the customer name. Let's say I have customer A, B, & C. I want to be alerted if customer A is rate limited more than 10 times in 5 minutes. Same, respectively, for B & C. Right now in sentry, I would have to go make 3 different alerts for each enumeration of customer tag. This does not scale well. ### Solution Brainstorm _No response_ ### Product Area Alerts