Summary:
This PR changes a log level to 3 so that it doesn't end up causing huge logs in case we end up accumulating the data for huge transactions.
Jira: DB-15022

Test Plan: Run existing tests.

Reviewers: siddharth.shah

Reviewed By: siddharth.shah

Subscribers: ycdcxcluster

Differential Revision: https://phorge.dev.yugabyte.com/D41461