Fix `level=user` bug in `get_transform_program`

[Shiro-Raven]

Context: When requesting level=user from get_transform_program with a final transform, only the expand function of that transform was included without the actual transform.

Description of the Change: The final transform is now added if it exists.

[sc-66171]

[github-actions[bot]]

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.67%. Comparing base (1bf7682) to head (d46184b). Report is 247 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #5854 +/- ## ========================================== - Coverage 99.68% 99.67% -0.01% ========================================== Files 421 421 Lines 40437 40119 -318 ========================================== - Hits 40309 39989 -320 - Misses 128 130 +2 ```

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