Summary:
D38335 added a new system table `pg_yb_logical_client_version`  which increased the number of tables  in `oracle.user_tables` causing TestYbBackup.testOrafce  test to fail. This diff fixes this assertion to raise the count of `oracle.user_tables`.
Jira: DB-13255

Test Plan:
  ./yb_build.sh release --java-test 'org.yb.pgsql.TestYbBackup#testOrafce'

Reviewers: myang, esheng

Reviewed By: myang

Differential Revision: https://phorge.dev.yugabyte.com/D38861