[NOT TO MERGE] Enable test TEnum::GetEnum

[devajithvs]

This Pull request:

A draft PR to test the change in: https://github.com/root-project/roottest/pull/1194

Changes or fixes:

Checklist:

• [ ] tested changes locally
• [ ] updated the docs (if necessary)

This PR fixes #

[github-actions[bot]]

Test Results

    14 files      14 suites   2d 23h 11m 4s :stopwatch:  2 697 tests  2 644 :white_check_mark: 0 :zzz:  53 :x: 35 504 runs  34 782 :white_check_mark: 0 :zzz: 722 :x:

For more details on these failures, see this check.

Results for commit 766f2947.

:recycle: This comment has been updated with latest results.