See for context: https://docs.google.com/document/d/1XZzS6UlfQUVJQPKSttKsXSxwV6bAmzS4D5jDjPvJWjY/edit

We don't have any metrics on the number of paused jobs in the system. This can be an important monitoring primitive for customers, especially in the context of changefeeds.

Jira issue: CRDB-18256