changefeed: let KV Excise command cancel the current Changefeed job

right now, if a KV Excise command was issued, it will stop the affected rangefeeds. However, Changefeed job will attempt to retry after receiving an error from rangefeeds. Preliminary testing showed that this is okay; however, in order to be safe, we could just stop the affected changefeed jobs when receiving an Excise error.

This might be important because Excise destroys the whole MVCC history, which might cause some assertion failures in the Changefeed job down the line.

Jira issue: CRDB-49387