DAOS-18977 test: test_dfuse_daos_build_wt to use otoc for data

[mchaarawi]

Quick-Functional: true
Test-tag: test_dfuse_daos_build_wt
Test-repeat: 5

Steps for the author:

• Commit message follows the guidelines.
• Appropriate Features or Test-tag pragmas were used.
• Appropriate Functional Test Stages were run.
• At least two positive code reviews including at least one code owner from each category referenced in the PR.
• Testing is complete. If necessary, forced-landing label added and a reason added in a comment.

After all prior steps are complete:

• Gatekeeper requested (daos-gatekeeper added as a reviewer).

[github-actions]

Ticket title is 'dfuse/daos_build.py:DaosBuild.test_dfuse_daos_build_wt - Failure to build over dfuse in mode writethrough, ucx failed to build'
Status is 'Open'
Labels: 'ci_master_daily'
https://daosio.atlassian.net/browse/DAOS-18977