roachtest: run SCRUB as part of randomized roachtests

**Is your feature request related to a problem? Please describe.**
We have a number of randomized roachtests that check read-only queries for correctness, such as tlp, costfuzz and unoptimized-query-oracle, but they do not explicitly check read-write queries for correctness. They might uncover issues with mutation queries in the process of checking read-only queries, but only indirectly. It might also be worth directly checking for the correctness of mutation queries, which would be helpful for catching issues like https://github.com/cockroachdb/cockroach/issues/137341. SCRUB is a good tool for this.

**Describe the solution you'd like**
Periodically run SCRUB during tlp, costfuzz and unoptimized-query-oracle (maybe after executing a bunch of mutations).

Jira issue: CRDB-45847